Training Day is a 2001 crime drama film directed by Antoine Fuqua, written by David Ayer, starring Denzel Washington and Ethan Hawke. The plot follows two LAPD narcotics detectives over a 24-hour period in the gang neighborhoods of South and East Los Angeles.

The film was a box office success and earned mostly positive critical appraisals. Washington's performance, a departure from his usual roles, was particularly praised and earned him an Academy Award for Best Actor at the 74th Academy Awards. His co-star Ethan Hawke was nominated for the Academy Award for Best Supporting Actor for his performance as a rookie cop. This film was also the debut of R&B singer Grammy-winner Macy Gray as an actress.

The film follows a single day in the life of an LAPD cop, Jake Hoyt (Hawke), who is scheduled to be evaluated by Detective Alonzo Harris (Washington), a highly decorated LAPD narcotics officer who could advance Jake's career. In Alonzo's car, the pair of officers observe teenage Mara Salvatrucha members dealing drugs in a park. Instead of arresting the buyers, Alonzo confiscates the drugs and tells Jake to take a hit from the marijuana. Jake initially refuses, but Alonzo puts a gun to his head and says Jake's failure to use drugs could get him killed by a street dealer. Jake relents and smokes the marijuana, but shortly thereafter, Alonzo tells him the marijuana was laced with PCP. While driving, Jake notices a female high school student being sexually assaulted by two men in an alley. Jake jumps out to help her and subdues the attackers, but Alonzo refuses to report the incident. He tells the girl to leave, telling Jake that the girl's gang member (Sureño) cousin will seek the attackers out for revenge. Jake discovers the girl's wallet on the ground and takes it. Jake objects to Alonzo's use of vigilante "street justice," but Alonzo characterizes Jake as naïve.