What to wear: This movie came and went pretty quickly, but that doesn't mean you should miss out on your chance to be a hippie-esque Bill Murray. Throw on a silky, psychedelic-printed shirt (open at the neck, naturally), a scarf to wrap around your hair, tinted aviators, a dark blazer, and jeans.
How to act: As washed-up rock manager Richie Lanz, be sure to fill your friends in on what songs you think are hot or not throughout Halloween.