Anachronisms: The Polaroid film used in the "Rock Cock" collection did not exist when Jim Morrison was alive.
Continuity: During the "Family Dinner", a bottle of red wine is prominently displayed on the table. The table is viewed from several angles and it is clear that this is the only such bottle there. Lavinia suddenly rises and walks away but then returns to grab the bottle and this time leaves with bottle in hand (and mouth). The camera returns to the table where the bottle is once again prominently displayed.
Continuity: While chasing down Harry at Horizon Hills Cemetary, the rear view mirror in the car carrying Suzette and Lavinia disappears and reappears between shots.
Revealing mistakes: While Suzette and Harry are driving to Phoenix, the El Camino's transmission is clearly in "Park".
Continuity: When Vinnie comes to take Ginger to the driving test, Suzette's bra strap is alternately out/in between shots.
Continuity: At the end of the movie, when Suzette and Harry are driving away, Suzette puts her glasses on. In the next shot, they are off again.
Errors made by characters (possibly deliberate errors by the filmmakers): Harry said he owned a Dodge Duster when he was in Hollywood. The Duster was a Plymouth; the Dodge version was the Demon.
Miscellaneous: Hannah is part of the class of 2002. Her tassel is backwards, and reads "Class of 2001".