Goofs

In the beginning when they are all standing outside on the sidewalk, there's an obvious jump cut.

Also, when one of the girls is tied up on a bed, a pillow that was not in the first shot appears out of nowhere.

In the second minute, Hayden says in a phone conversation to his friend from his friend's house, "I'm gonna drink some of your beer and some of your food..." which makes no grammatical sense.

Dude: "Is she that wasted?" Gal: "No, I think it might be more than that, it might be alcohol poisoning." This makes no sense.