Factual error: When the Millers' RV breaks down and it gets towed by the Fitzgeralds' RV, the two are connected by a tow rope. There is no one in the Millers' RV steering or working the brakes. The RVs would crash into each other the first time the front one slows down, and the Millers' RV would not steer properly to follow the Fitzgerald's. Also, when we see in the Fitzgeralds' side mirrors, we don't see the Millers' RV being towed.
We're the Millers (2013)
1 factual error - chronological order
Directed by: Rawson Marshall Thurber
Starring: Jennifer Aniston, Emma Roberts, Ed Helms, Jason Sudeikis
Genres: Comedy
Continuity mistake: In the scene where Kenny feels he's been bit by a spider on his privates and run off the bus with everyone following after him. Kenny then pulls down his pants so they can look at it. Throughout these scenes, his pants are supposed to be pulled down. Right at the moment Kenny faints from the bite, you can see that his pants are pulled up and buttoned.
Casey Mathis: These assholes are trying to steal my iPhone!
David Clark: Wait, you have an iPhone? Aren't you homeless?
Casey Mathis: So? Fuck you, dude!
Trivia: When David gets kidnapped by Brad in the beginning, look at David Miller's grey T-shirt. It says "Bryant's Bar-B-Q." Jason Sudeikis is from Kansas City (as am I), and that is a prominent BBQ place, voted very highly in KC as the best BBQ.
Answer: Don.
No, he was driving Fitzgerald's RV.
Nobody is driving; they're all in the Fitzgeralds' RV.