It certainly appeared the main characters just ad-libbed their way though this film, a film loaded with homo-erotic jokes. Ladies beware, you're probably not gonna like this movie for that reason. All the actors play themselves. It's about the end of the world occurring as a big celebrity house party filled with drugs, booze and sex is going on. Bizarre comedy-horror flick. Hanging on for dear life as you're slipping into these gigantic holes. Craig Robinson had the most hysterical high screeching screams in this film. Lol. I will say the end of the movie makes us all feel like you know, it's not too bad when we're done on this earth...