
Question: Why does the weather and road/ground change so much (dry, rain storm, wet, snow) in the beginning of the movie from the kitchen to the train station?

Question: At the beginning, what was the old nun trying to do with the cross key in the dark room with the door that says "God ends here"?
Answer: The nun was trying to find the relic. The deceased nuns had no actual idea where it was. That's the whole reason Irene was summoned by the Vatican because she had visions about "Mary pointing the way" also the "ghost nuns" more than likely have something to do with her clairvoyance as well.
Answer: Are you talking about before she opens the door? She's just making the sign of the cross, but using the same hand she's holding the key in.
I'm asking about what she was going to do in the dark room, what her plan was, what the cross key was for.
It was to open the chamber that kept the vial of the blood of Christ so they could try to send Valak back to Hell.
The gateway to the relic was near the state of Mary, and it wasn't located inside the chamber seeing that Burke and Irene found the relic before crossing the passage leading to the chamber with the sign "God ends here." If there's someone who must have known where the relic was, it has to be the abbess. Then, why didn't she take it if she was going to?
From everything I understood, the cross key opened the chamber that had the blood of Christ. The room with the sign "God ends here" was not the chamber I was speaking about. I was only addressing the question about what the key was for.

Question: Not sure this is a movie mistake. When the mom is sawing off her own head, wouldn't the sawing have stopped once she cut through her spinal cord? The muscles in her arms/hands would have gone limp and her head would not completely fall off - though it would fall forward. You don't actually see her head fall but you hear the bang on the floor and her head is missing at the end.
Answer: When she's sawing off her own head, she's also suspended about 12 feet in the air. Afterwards, you also see the headless mom's body levitating up to the treehouse. So, obviously, there were powerful demonic forces that suspended her in the air, sawed off her head, then carried her up into the treehouse.

Question: Why would Lewis confess to Jonathan and Florence that he brought back Issac from the dead? He could've kept it a secret to avoid being yelled at.

Question: Wouldn't her freshly bleached hair go green from the chlorine?

Question: Towards the beginning of the film, when Hamilton is talking to her husband via video chat from the space station, he is in the middle of saying something when the signal cuts out quite abruptly. She just stares at the screen for a moment as does he on his end without either side trying to reestablish contact. Was there a reason why they didn't try to bring the call back? it gave no indication as to why the signal even cut out. Though my guess is maybe the Earth rotation put them out of range or blocked the signal. But that's just a guess of the top of my head. It just felt strange that the reason for this was never addressed neither side even attempted to re-establish contact. So why exactly did they not?
Answer: The opening credit scene (waking up, in the kitchen, the drive, being on the train, and walking through the terminal) is montage where each cut represents another day in Michael's life. It's meant to show the monotony of his life through the whole year (or even years) and how he follows the same routine everyday.
Bishop73