Ben Stiller and Owen Wilson as David Starsky and Ken Hutchinson in Starsky & Hutch (2004)

If you're going to go undercover you need to be able to convincingly act like whatever it is that you're impersonating. Therein lies the problem for these two goofball cops, who infiltrate a drug kingpin's home by dressing up as two of the worst mimes ever for his daughter's Bat Mitzvah and get into another of his parties by playing ridiculous big wigs in ridiculous big wigs. If you can manage to look conspicuous in the '70s, when dudes were rocking platforms and bellbottoms, you know you've gotta tone the disguises down a notch.