If.... is a 1968 British satirical drama film produced and directed by Lindsay Anderson, and starring Malcolm McDowell as the character Mick Travis who appeared in two further Anderson films. Other actors include Richard Warwick, Christine Noonan, David Wood, and Robert Swann. A satire of English public school life, the film follows a group of pupils who stage a savage insurrection at a boys' boarding school. The film was the subject of controversy at the time of its release, receiving an X certificate for its depictions of violence.

Lindsay Gordon Anderson was a British feature-film, theatre and documentary director, film critic, and leading-light of the Free Cinema movement and of the British New Wave. He is most widely remembered for his 1968 film if...., which won the Palme d'Or at Cannes Film Festival in 1969 and marked Malcolm McDowell's cinematic debut. He is also notable, though not a professional actor, for playing a minor role in the Academy Award-winning 1981 film Chariots of Fire. McDowell produced a 2007 documentary about his experiences with Anderson, Never Apologize.