Dont Bother to Knock is a 1952 English-language Drama Film-Noir movie directed by Roy Ward Baker and produced by Julian Blaustein. Airline pilot Jed stays at the New York hotel where girlfriend Lyn is a singer. He s Nell in a window opposite his and they get chummy. When the girl she's baby-sitting, Bunny, enters Nell goes crazy and sends her to her room. She fantasizes that Jed is her long lost fiance. Jed comes to realize that Nell is than a little whacko. Written by Ed Stephan. Dont bother to knock features Richard Widmark in the title role along with an ensemble cast including Marilyn Monroe, Anne Bancroft, Donna Corcoran, Jeanne Cagney, Lurene Tuttle and Elisha Cook Jr. The screenplay is written by Daniel Taradash which is inspired from Mischief 1951 novel by Charlotte Armstrong. The music was composed by Lionel Newman. Cinematography was done by Lucien Ballard and editing by George A. Gittens. The movie has a running time of 76 minutes. and it received positive reviews from critics when it was released. The film made a box office gross of $1 million. Distribution rights for the film were acquired by 20th Century Fox.