Jen's mom in the film is played by her actual mother. She wasn't briefed on what to say and all of her conversations with her daughter are real.
Around 25% of the film was shot with two other actors before the footage was scrapped and re-shot with the final leads.
The word "fuck" and its derivatives are used 169 times for an average of 1.77 fucks per minute.
All of the characters go by their real names except for Gary.