Factual error: In the scene where the prison van crashes and flips, the prisoners grab the keys and get out. Even if they did obtain the keys, they wouldn't have been able to unlock the locks on a prison vehicle from the inside.
Factual error: Throughout the movie, scenes show orange groves and rolling hills, but neither exist within hundreds of miles of the real Happy, which is located on the semi-arid plains of the Texas panhandle.
Harry Sawyer: So we're gay. How hard can that be?
Wayne Wayne Wayne Jr.: It might not be hard for you, Rock Hudson, but I have got heterosex.
Harry Sawyer: What?
Wayne Wayne Wayne Jr.: 'Not gay' written all over me.