The Proposal (2009) - 8 mistakes

Other: During the sequence where Margaret proposes to Andrew on the street in New York, the same woman in a green sweater walks by three times.

Audio problem: During the airport scene, when Andrew is talking to his friend on his cell phone, asking him to stop the plane with Margaret from taking off, he looks up at his friend in the tower who says, "There was nothing I could do," but his lips aren't moving - he's merely smiling apologetically.

Other: When Margaret and Andrew first walk into the Immigration Office there are a group of extras seated directly to the left of them, in two rows. One of them, a guy with glasses and long black hair, wearing a white shirt with patterns (back row, second from the wall, next to the guy in the light yellow shirt), briefly looks at the camera as Margaret and Andrew walk by.

Other: When Margaret is hoisted from the water, her clothes should have been sopping wet, but they looked like they had partially dried over the course of several takes.

Revealing: During the scene in New York City when Margaret proposes, a Boston police car is quite noticeable in the background. (Filming took place in Massachusetts, not NYC.)

Revealing: At the beginning of the movie, when Ryan has the two coffees, he walks by a store and you can see a young kid hanging out the window using his cell phone to film him walking.

Visible crew/equipment: When Margaret and Andrew go to the Immigration Office and cut everyone in line, one can see the camera and crew reflected off the vending machines, as they make their way to the front of the line.

Revealing: When Margaret falls from the boat, she is floating with her shoulders well above the water, probably due to a hidden flotation device. Her outfit was too tight to trap any air for buoyancy, and a fully clothed person would normally be up to their neck in the water.