The Informers (US title - Underworld Informers) is a 1963 British crime film produced and distributed in the UK by The Rank Organisation and distributed in the USA by Continental Film Distributors. It was directed by Ken Annakin and produced by William MacQuitty, with the screenplay by Paul Durst and Alun Falconer from the novel Death of a Snout by Douglas Warner. It stars Nigel Patrick, Margaret Whiting, Harry Andrews, Derren Nesbitt and Colin Blakely. Cinematography was by Reginald H. Wyer. It was filmed at Pinewood Studios and on location in London.