Corrected entry: When Jack and Lucy take the moving truck to Peter's apartment to unload the engagement present, Jack parks very close to the car in front. Sandra Bullock gets out of the truck and says "Bill I think you parked too close..." and then makes a "whoops" face as if she made a mistake. She has called Jack by the actor's name (Bill Pullman).
Corrected entry: In the scene where the entire family is squeezing on the elevator just after Lucy revealed that Peter only has one testicle, one actor in the back of the elevator keeps repositioning himself so he is constantly visible to the camera, even going so far as to stand on his tip toes.
Corrected entry: After Lucy jumps off the platform to save Peter and the train finally arrives, the shot from above shows them under the edge of the train, as if they are being crushed. The next shot from the side shows them safely clear of the train but reveals that there is no space under the train for them to have survived as the train supposedly passed over them.
Corrected entry: Lucy and Jack end up walking back to Lucy's house when Jack's truck is blocked in at Peter's high-rise apartment. However, Peter's apartment is a very well-known building right off of Lake Michigan, and Lucy's apartment is in a style not found within about 4-5 miles of that spot. Lucy states she is planning to walk to her apartment (even before Jack offers to walk her) - no way would she have been planning to walk between 60-90 minutes in the winter cold.
Corrected entry: In the Christmas at Jack's house scene, the camera pans quickly to the Christmas tree where it's possible to see a long-haired, crew member trimming the tree who is obviously on the movie crew and accidentally caught on camera.
Corrected entry: When Lucy drags the nurse in the hall after they meet the family, the camera goes back and forth from Lucy to the nurse. First Lucy has a sweater and a tee shirt on, then no tee shirt, then a tee shirt again.
Corrected entry: When Lucy is in the back of the delivery truck with Jack when he comes by to drop off the loveseat, she sits in a rocking chair he had made. If you look before she sits in it (when she is getting up into the truck), there is a strap holding it in place so that it won't move around the truck. When she sits in it, the chair rocks...impossible if it's strapped to the side of the truck.
Corrected entry: At the end, when Lucy first picks up the engagement ring it's on her thumb. When she lets Jack into the booth and kisses him it has suddenly moved to her index finger.
Corrected entry: When Jack goes to tell his father that he doesn't want to take over the family business, he brings him donuts. According to the time frame of the film, it's just after New Years, but the donut box has colored leaves on the outside, suggesting it was bought in the fall.