When Sandy is following Diana down the highway, there is a quick glimpse of the speedometer of her car as she accelerates. The car says it is "Tue 23 Feb." However, based on the photo IDs, Sandy's birth date is 18 May 1974. The movie takes place in May just after his birthday, based on his family celebrating his birthday near the beginning of the movie.
After getting his credit card cut at the gas station, Sandy starts walking away as soon as the clerk starts mocking him. In the next shot he is standing still in front of the glass window as if he hadn't moved at all.
When Julian and Marisol are put into the trunk of their car at gun point, they were clearly driving a Dodge Charger, however the shot of them in the trunk was taken from a Ford Crown Victoria. This happens again when they are removed from the trunk by the police after the car chase.
As Sandy arrives in Winter Park, Florida, a flying shot of a beach in front of the town with an unknown skyline is shown. Winter Park is a small bedroom community just north of Orlando and it's completely landlocked with the exception of a few local lakes. The closest beach to Winter Park are approximately fifty minutes away.
In the scenes set in Denver (stopped by police/gas station) and St. Louis (police car escape/foot chase), distinctive Atlanta landmarks and buildings are visible (Philips Arena, Georgia Dome, Federal Building).
When Sandy and Diana pull over at the underpass in Florida, overhead signs for Georgia highways are present on the over-passing highway. These same signs are also seen during the car chase with the skiptracer.
When the real Sandy is driving to Colorado with Diana. He swerves the car to bang her head against the passenger door, twice. The camera tries to move to make it look like a swerve but the background behind the car does not change the motion.