Other mistake: Right at the very end, when all the prisoners are standing in the room, it starts to slowly zoom in on Alice in the middle, but watch the blonde girl on the left of Alice - she starts laughing for no reason at all as Alice smiles to herself. I don't think it had anything to do with the film either, because it didn't show any reason why she would just start laughing like that.
Factual error: Throughout the movie, cars are shown driving on the right side of the road, but in Thailand traffic moves on the left. The movie was actually filmed in the Philippines instead of Thailand due to its subject matter about the Thai legal system.
Continuity mistake: The writing on the tape that Alice sends to Hank keeps changing every time you see it through the film.
Continuity mistake: When the girls are arrested at the airport, they're loaded into a police van. A cop bangs on the back door to let the driver know it's safe to take off... but the van's already moving.
Continuity mistake: Right at the end, when Darlene is in the car driving away, Hank goes over to Alice. Right at the start of this shot, he has his hand over hers while it's resting on the bar, but then the shot changes and he puts his hand over hers again.