Corrected entry: Kate asks Alex to rescue her copy of Jane Austen's 'Persuasion' from the train station bench. Alex tells Kate he will save it for her for when they meet. Then, in her apartment bedroom at 1620 Racine that she's sharing with boyfriend Morgan, Kate checks a loose floorboard to find that book hidden beneath; though the story makes clear that Alex has never been inside the apartment.
Corrected entry: When Alex finds his dog at Morgan and Kate's house, his girlfriend comes running up and says "Thank God you found him." The dog is a female and she surely knew that.
Corrected entry: In the scene where Kate is sitting at a bar, another woman (Dr.) comes in and sits on her left, but in the next shot she is on Kate's right.
Corrected entry: When Jack the dog runs up the ramp being painted, he makes footprints but when Keanu immediately runs after him he makes no footprints, though it would still be wet.
Corrected entry: Kate is in the future and has named the dog Jack and informs Alex of this in a letter, which he receives in a magic time-travel mailbox. Alex adopts this same dog in the past, before the dog has ever met Kate. Jack tests out the name "Jack" on the dog, and the dog reacts to this name. The dog should not know this name as it hasn't yet met Kate. This is backwards. Alex should have been the one to tell Kate of a name he gave to the dog, and she should have been the one to test it on the dog.
Corrected entry: The reason Sandra Bullock buys the lake house is because she witnesses Keanu Reeves' death. She "meets" Keanu Reeves because she bought the lake house. In order for this to happen, Keanu has to die in her time, yet at the end of the movie, he lives therefore she never would have bought the house or met him.
Corrected entry: Jack the dog appears from nowhere early in the movie and is taken in by Alex. In the future, Kate, who has not yet met Alex, owns Jack and mentions her name in a letter sent to Alex. Since at that point in the film their paths had not crossed in either present or future, where did the dog's name come from? For that matter, where did the DOG come from?