There is no way a jumbo jet could make that sharp of a turn and gain that much speed in such a short amount of time to avoid the collision.
There is no way the pilots of the other plane would continue straight ahead instead of trying to avoid a collision.
When the planes are about to collide the radar screen shows one infront of the other but when they show the planes themselves the planes are headed toward each other.
When Harold is briefing the team about Chemical Mary, he says that the fifteen-year-old photo of her is the most recent they have. Earlier, Dembe gave Harold a dossier on her with a recent photo.
When Cooper opens the supposed "blackmail" file, the contents of that file are excerpts from Dostoyevski's "Crime and Punishment", with various parts enlarged and/or marked red.