When Evan opens the wine, he never twists the corkscrew into the bottle.
When Anna goes to the professor's office, she is wearing lipstick in some shots and not in others.
The 1st thing the lead character says in the movie is that he is having memory problems . this is something that is constant throughout the movie but nobody thinks to take him to a doctor to find out why. could be a brain tumor, could be early onset Alsheimer's ? the audience never finds out . the thing is if the lead had been a woman someone would have cared enough to try. other than that an excellent movie . . .