If you only have three minutes to spend on American Psycho, Mary Harron's brilliant adaptation of Bret Easton Ellis' brutal satire of 80s excess, make it the Business Card Scene (caps required). It's a prefect synecdoche for the movie: Patrick Bateman's calculated exterior, the hyper-competitive atmosphere, the way one character pulls his card from the running at the mere mention of Paul Allen's card (he looks like he just got pantsed after a cold swim), Patrick's near-orgasmic reaction to the watermark followed almost instantly by a murderous rage. Packing that much into one scene is plenty badass to me. See for yourself:

Opening your business card case is like pulling a blade. You better know what you're doing.