I'm not going to say that this is 100% accurate, but it'd be very close :)
Here's the transcript from the first cinematics "The Sister's Lament". I'll do the rest later on:
----------------
<Cloaked figure walking through gateway>
<Marius lying on the ground in cell>
<door opens>
<cloaked figure enters and sits near the window, while Marius crawls away>
Cloaked Figure: So Marius...at last I find you
<Marius looks into the light from the window and sees Tyrael>
Marius: Tyrael, yes..yes now I..now I recognise you...you
Marius: I should have known you'd travel in disguise
Marius: I...they're..they're always watching
Cloaked Figure: I've been searching for you for a long time Marius
Cloaked Figure: I was rather beginning to think that you didn't want to be found
Marius: Oh forgive me Tyreal please ... it... it wasn't my fault..
Cloaked Figure: Not your fault? Tell me Marius, how was it not your fault?
Marius: The wanderer...yes...it was....was the wanderer
<flashback>
Marius: My days at the rogue citadel seemed so long ago
Marius: I sought refuge .. from my memories in the company of other outcasts, high in the moutains past the eastern gate
<Bar staff member walks up to Marius>
Bar staff: Do you want something
<Bar staff member walks away>
Marius: Oh.. I fought sleep .. for days at a time
Marius: For when I dreamt, the memories .. would return
Marius: Memories of the monestary .. and the evil which had claimed it
Marius: Dreams, memories, I couldn't tell the difference anymore
<Wanderer comes in>
Marius: Had the evil from my dreams followed me in my heels?
Marius: How had he found me here?
<Wanderer walks in>
Marius: How could this broken shell of a man, barely able to carry the weight of his own sword...be the burning terror which drove me to hide here?
<Wanderer sits down>
<Wanderer slams sword into ground>
Marius: He seemed to ... to have demons of his own....that he struggled to contain
<man laughs>
Marius: And he was losing...
<battle scene, with the summoning of demons>
Marius: The horror...as I watched...I became convinced...that I was truely mad
Marius: The terror, the destruction...the...the evil I witnessed
Marius: How else could I have explained them?
Marius: Were these the demons from my dreams..or were they born...within the wanderer.
<battle scene continues>
<battle ends, Wanderer regains control>
<They walk outside the Inn>
Marius: Why did I follow him? .. I don't know
Marius: Why do things happen as they do in dreams
Marius: All I know is that when he beckoned .. I had to follow him
Marius: From that moment, we traveled together east..always...into the east.
<Diablo II logo>
Edit:
Cinematics Two "Desert Journey" -> Displayed between Act 1 and Act 2. I've intentionally left out descriptions of what's happening, since it's pretty short and straightforward.
<Act II>
Marius: We travelled East...over the mountains and into the vast desert of broken lands
Marius: As the days past, my companion told me of himself, that he had once been a great warrior
Marius: And that a dark and secret burden now weighed heavily upon him
Marius: We traveled for an eternity...across that barren wasteland
Marius: How long...I couldn't say. And always .. a dark cloud seemed to follow us .. just over the horizon
Marius: Finally the journey ended, we climbed the last bridge
Marius: There below us lay .. our destination
Marius: The shining jewel.. Lut Gholein, with the great sea beyond..
Marius: We made camp there last night, perhaps it was the warm desert wind or the sound of the ocean, but for the first time
in many weeks .. I slept
Marius: However, the dreams returned but these were clearly not my own
<start of dream>
Marius: I beheld a vision of a great man, the mage .. Tal Rasha
Marius: You were there too Tyrael, I remember.. seeing you in my dream
Marius: His breathern had cornered a great demon..Baal, lord of destruction who had been set loose upon the world
Marius: They attempted to imprision the demon within a sacred stone
Marius: Yet, when their attempts failed, Tal Rasha selflessly volunteered to contain the demon within himself, completing the prison.
Marius: He instructed his breathern to bind him within tomb, buried under the sand
Marius: There to wrestle with the demon for all eternity
<end dream>
Wanderer: Now you know what I seek Marius, this is my brother
Wanderer: Sleep now, we set out with the dawn
Marius: The next morning, we walked over the hill toward Lut Gholein. I had no idea then .. of the horrors that were in store for me there
Cinematics Three "Mephisto's Jungle" -> Played between Act 2 and Act 3
<Act III>
Marius: My companion drew in the dank, cold air of the tomb
Marius: It seemed to ... strengthen him
Marius: I stood in the doorway, between light and dark
Marius: What was left of my sanity .. implored me not to enter
Marius: But that voice .. was just a whisper now.
Marius: As we worked our way down, deeper and deeper into the crypt
Marius: I began to .. see a change in my companion
Marius: He seemed to be gaining strength
Marius: I can hardly see in the gloam but my companion .. seemed to know the way
Marius: We came at last to a great hall.
<Bats fly around>
<Both stop breifly>
<Wanderer screams>
Marius: It was then I realised my companion hadn't been gaining strength, he had been losing .. what was left of his humanity
<They both enter the hall>
Marius: He moved with demonic speed and then...then you appeared
Tyrael: Stop
Tyrael; The beast contained herein shall not be set free, not even by you
<Wanderer charges at Tyreal>
<Both go over the edge of the bridge>
<Battle scene starts>
<Marius looks at Baal/Tal Rasha>
Baal/Tal Rasha: Look what they've done to me
Baal/Tal Rasha: Release me...help me
<more of the fight scene>
<Marius moves towards Baal/Tal Rasha, over the bridge>
Baal: Hurry...Please Hurry
<Marius begins to removes the soul stone>
Tyrael: No, don't do it
<Soul Stone is removed>
Tyreal: Fool, you have just ensured the doom of this world, you cannot begin to imagine what you've set in motion this day
Tyreal: Go to the temple of light, in the eastern city of kurast, there you will find the gate to hell opened before you
Tyreal: You must find the courage to step through that gate
Tyreal: Take the stone to the hellforge, where it will be destroyed
Tyreal: Now run, take the stone and run
<Marius running out of the tomb>
Marius: What choice did I have?
Marius: I ran
Here's the transcript from the first cinematics "The Sister's Lament". I'll do the rest later on:
----------------
<Cloaked figure walking through gateway>
<Marius lying on the ground in cell>
<door opens>
<cloaked figure enters and sits near the window, while Marius crawls away>
Cloaked Figure: So Marius...at last I find you
<Marius looks into the light from the window and sees Tyrael>
Marius: Tyrael, yes..yes now I..now I recognise you...you
Marius: I should have known you'd travel in disguise
Marius: I...they're..they're always watching
Cloaked Figure: I've been searching for you for a long time Marius
Cloaked Figure: I was rather beginning to think that you didn't want to be found
Marius: Oh forgive me Tyreal please ... it... it wasn't my fault..
Cloaked Figure: Not your fault? Tell me Marius, how was it not your fault?
Marius: The wanderer...yes...it was....was the wanderer
<flashback>
Marius: My days at the rogue citadel seemed so long ago
Marius: I sought refuge .. from my memories in the company of other outcasts, high in the moutains past the eastern gate
<Bar staff member walks up to Marius>
Bar staff: Do you want something
<Bar staff member walks away>
Marius: Oh.. I fought sleep .. for days at a time
Marius: For when I dreamt, the memories .. would return
Marius: Memories of the monestary .. and the evil which had claimed it
Marius: Dreams, memories, I couldn't tell the difference anymore
<Wanderer comes in>
Marius: Had the evil from my dreams followed me in my heels?
Marius: How had he found me here?
<Wanderer walks in>
Marius: How could this broken shell of a man, barely able to carry the weight of his own sword...be the burning terror which drove me to hide here?
<Wanderer sits down>
<Wanderer slams sword into ground>
Marius: He seemed to ... to have demons of his own....that he struggled to contain
<man laughs>
Marius: And he was losing...
<battle scene, with the summoning of demons>
Marius: The horror...as I watched...I became convinced...that I was truely mad
Marius: The terror, the destruction...the...the evil I witnessed
Marius: How else could I have explained them?
Marius: Were these the demons from my dreams..or were they born...within the wanderer.
<battle scene continues>
<battle ends, Wanderer regains control>
<They walk outside the Inn>
Marius: Why did I follow him? .. I don't know
Marius: Why do things happen as they do in dreams
Marius: All I know is that when he beckoned .. I had to follow him
Marius: From that moment, we traveled together east..always...into the east.
<Diablo II logo>
Edit:
Cinematics Two "Desert Journey" -> Displayed between Act 1 and Act 2. I've intentionally left out descriptions of what's happening, since it's pretty short and straightforward.
<Act II>
Marius: We travelled East...over the mountains and into the vast desert of broken lands
Marius: As the days past, my companion told me of himself, that he had once been a great warrior
Marius: And that a dark and secret burden now weighed heavily upon him
Marius: We traveled for an eternity...across that barren wasteland
Marius: How long...I couldn't say. And always .. a dark cloud seemed to follow us .. just over the horizon
Marius: Finally the journey ended, we climbed the last bridge
Marius: There below us lay .. our destination
Marius: The shining jewel.. Lut Gholein, with the great sea beyond..
Marius: We made camp there last night, perhaps it was the warm desert wind or the sound of the ocean, but for the first time
in many weeks .. I slept
Marius: However, the dreams returned but these were clearly not my own
<start of dream>
Marius: I beheld a vision of a great man, the mage .. Tal Rasha
Marius: You were there too Tyrael, I remember.. seeing you in my dream
Marius: His breathern had cornered a great demon..Baal, lord of destruction who had been set loose upon the world
Marius: They attempted to imprision the demon within a sacred stone
Marius: Yet, when their attempts failed, Tal Rasha selflessly volunteered to contain the demon within himself, completing the prison.
Marius: He instructed his breathern to bind him within tomb, buried under the sand
Marius: There to wrestle with the demon for all eternity
<end dream>
Wanderer: Now you know what I seek Marius, this is my brother
Wanderer: Sleep now, we set out with the dawn
Marius: The next morning, we walked over the hill toward Lut Gholein. I had no idea then .. of the horrors that were in store for me there
Cinematics Three "Mephisto's Jungle" -> Played between Act 2 and Act 3
<Act III>
Marius: My companion drew in the dank, cold air of the tomb
Marius: It seemed to ... strengthen him
Marius: I stood in the doorway, between light and dark
Marius: What was left of my sanity .. implored me not to enter
Marius: But that voice .. was just a whisper now.
Marius: As we worked our way down, deeper and deeper into the crypt
Marius: I began to .. see a change in my companion
Marius: He seemed to be gaining strength
Marius: I can hardly see in the gloam but my companion .. seemed to know the way
Marius: We came at last to a great hall.
<Bats fly around>
<Both stop breifly>
<Wanderer screams>
Marius: It was then I realised my companion hadn't been gaining strength, he had been losing .. what was left of his humanity
<They both enter the hall>
Marius: He moved with demonic speed and then...then you appeared
Tyrael: Stop
Tyrael; The beast contained herein shall not be set free, not even by you
<Wanderer charges at Tyreal>
<Both go over the edge of the bridge>
<Battle scene starts>
<Marius looks at Baal/Tal Rasha>
Baal/Tal Rasha: Look what they've done to me
Baal/Tal Rasha: Release me...help me
<more of the fight scene>
<Marius moves towards Baal/Tal Rasha, over the bridge>
Baal: Hurry...Please Hurry
<Marius begins to removes the soul stone>
Tyrael: No, don't do it
<Soul Stone is removed>
Tyreal: Fool, you have just ensured the doom of this world, you cannot begin to imagine what you've set in motion this day
Tyreal: Go to the temple of light, in the eastern city of kurast, there you will find the gate to hell opened before you
Tyreal: You must find the courage to step through that gate
Tyreal: Take the stone to the hellforge, where it will be destroyed
Tyreal: Now run, take the stone and run
<Marius running out of the tomb>
Marius: What choice did I have?
Marius: I ran