Revealing mistake: At the very end Vince is DJing with the cobra, and when the cobra starts dancing you can see the fishing wire attached to the snake to make it move.
Continuity mistake: During the crowd scenes at the party there is a girl with a blonde bob cut and a pink and black leopard print top who noticeably and dramatically changes places between shots. A good example is when Howard is giving his speech and she is at the front of the crowd, then suddenly appears on the complete opposite side of the room next to Vince's bedroom door, and then appears in the middle of the crowd, dancing.
Tony Harrison: I come fully equipped with a papoose! I slip into it like a peanut. If you don't like the papoose system I have a wheel that clicks into place under my chin.
Saboo: Must I assemble this Kinder Egg?