As far as the differences in the dialogue go, Claire actually wakes up in what I suppose we could say is a Scene 176A in the film and, unscripted, she calls out -
"Alex, come to bed." - followed by asking -
"What time is it?" - and then calling to -
"Alex." - him again - and then afterward, instead of saying "Alex! Oh, my God, Alex!", Claire actually screams "Alex!" and then literally screams - and then she actually follows up with "Oh, my God. ... Alex! -- oh, Alex! ... Alex, please be all right!...Alex...oh, Alex...Alex!...Darling!..."
And as far as the differences in the descriptions and directions go:
It's interesting that for Scene 175 there's a reference to a jeep (presumably actually Gerard's truck) no longer being there when DC actually had to add to his script that Gerard was watching Claire and Alex in Scene 173. Apparently Gerard watching must have been a part of the script but was accidentally left out somewhere along the way.
And when we first see the cottage living room in Scene 176, the room isn't in darkness except for the glowing embers in the fireplace because the light is on -
- however, soon the light slowlys dims until the room actually is in darkness -
- and Alex begins to toss and turn -
- until we actually see Angelique's spirit -
- come down the corridor - approach -
- Alex - and then turn into -
- the mist-like vapor that envelopes Alex' body. So, the camera doesn't actually do a slow pan of the living room because, as we could see in the above captures, the camera actually remains stationary and focused on Alex asleep on the couch - and the camera also doesn't do a truck down the hallway, and we never actually see Claire and Alex through the bedroom door and asleep in their twin(!) beds (especially considering we've already seen Alex asleep on the couch in the living room) - and the camera doesn't continue to truck in as it enters the room.
What actually happens is that there's more like a Scene 176A in which we immediately see Claire waking up alone in bed -
- and as was already discussed above, she calls out Alex a few times - but then she suddenly realizes that something is wrong and she gets up - and once she's in the corridor, she sees what's happening to Alex - and after momentarily stopping dead in her tracks -
- and screaming, she reaches for the floor lamp but knocks -
- it over in her frenzy - but once she does turn -
- it on, the other light also comes back and the mist-like vapor that envelopes Alex' body -
- disappears - and as we can see in today's capture -
- she rushes to Alex side, desperately trying to revive him, until -
- he does indeed revive. So, all that means that a lot of what's scripted to happen in Scene 177 doesn't actually happen in the film. And in some ways that's too bad because much of what was scripted would have been quite interesting to see. But who knows if things were changed because it would have been too costly or too complicated to shoot, or perhaps for some other reason? Though at least some of the planned effects were reworked and used. And actually, I think having Angelique's spirit arrive and transform into the mist-like vapor was actually better than how it was introduced in the script.
One thing that's very interesting, though, it that one can easily tell that there are three distinct cuts in the background music for Scene 177, so apparently it's quite likely that footage was removed for time during the marathon James Aubrey imposed editing. And that sort of ruins how things were to play in slow motion. But perhaps they still do in the 129 minute version...