Now’s your chance to indulge your inner Garbo.

Columbia University Film Productions needs extras tonight for a scene in its project, “Serotonin.”

Fortunately, since extras will be playing students, there’s no need to go all Dustin Hoffman on CUFP. Just show up wearing normal student clothes (anything from the Gap family of brands will do) and normal student expressions (sadness, tiredness, disaffection).

The film shoot will run from 6 p.m. to 8 in Fayerweather 313, but you need show up only for one of the two hours. Wages will be paid in free food, your name in the credits, and a DVD copy of the finished product.