Twice when Randy (Ethan Suplee) is woken up he mutters "Poopy trim!". This is a reference to the Kevin Smith film Mallrats (1995), where Suplee said the same thing when he was brought out of a daze.
In the scenes where pregnant "Joy" is in the shower, the body double is wearing flesh colored panties, just barely visible at the bottom of the screen. This goof is likely not visible on CRT televisions that over-scan.
The "Amigos de Garcia" production company card in the closing credits features a different friend of Executive Producer 'Gregory Thomas Garcia' every week.