Factual error: When they're trying to head to Mexico, they pass the same rock formations several times. Specifically, earlier in the drive, the formations are in the scene where they mention the Rocky Mountains. The same formations can be seen later when they get pulled over by the cop. It's like they're driving in circles. Part of the film was shot outside of Moab, Utah, near Arches National Park. (01:34:19 - 01:41:30)
Revealing mistake: Near the end, as they are chasing the girls, the cops turn around on the freeway into the dirt median. They follow exact tyre tracks from previous takes.
Audio problem: Right after the girls blow up the tanker, there is a sequence with scanner traffic. They show some helicopters. Right at the beginning of the scene with the choppers, the audio of them cuts out for a split second.
Revealing mistake: When they blow up the tanker and drive in circles around the truck driver, the ground has been disturbed from previous takes.
Answer: It's the 1941 film "Penny Serenade".
Sierra1 ★