When Tim is asleep on the kitchen table, the contents of the pickle jar he was eating from jumps from empty to half full between shots.
When Sandy hands the $50 bill to the undercover cop, we see its back from her point of view. When the view shifts to the other direction, we still see the back, but we should see the face.
Matt's swimming time at the start of the movie is 44.3 for a 100 meter long course swim. This time would better the world record of 47.84. If he had been swimming in a short course yard (instead of long course meters) pool this time would have been a great time, but not a world record.