Hollywood has always been obsessed with finding heroes in everyday life, and frequently, to do that, they're turned to cops.

These are movies that showcase police officers and detectives on duty with all the moral complexity that comes with the job. With all that said, here are the 20 best cop movies of all time, ranked.

Southland is a must-watch.

André Joseph is a movie features writer at Collider. Born and raised in New York City, he graduated from Emerson College with a Bachelor's Degree in Film. He freelances as an independent filmmaker, ...