Ryan complains that his wife sets his clocks forward to give him more time but then says it actually gives him less time. Moving a clock forward would make Ryan arrive places ten minutes EARLY, so the wife is right and Ryan (and the writers) are wrong. e.g. His watch would say 9:00 when it was really 8:50.
At the very end during the wedding ceremony, characters sitting behind Frank & Susan on the right hand side of the aisle are a different set of people while shot from the camera behind, while Frank walks his daughter.