Lights, camera, murder.
Serial killers, ruthless mobsters and sneaky con artists alike have long fascinated the general public, so it's no wonder some of Hollywood's most iconic films have drawn inspiration from the twisted minds of history-making criminals.
From Charlize Theron's bone-chilling performance of since-executed murderer Aileen Wuornos in Monster, to Johnny Depp's portrayal of notorious organized crime leader Whitey Bulger in Black Mass, movie buffs just can't get enough true crime on the big screen.
Click through the gallery below to relive our favorite actors' gripping transformations into keep-you-up-at-night cases surrounding the infamous Black Dahlia, Zodiac Killer, Jeffrey Dahmer and more.