Suddenly is a 1954 English-language Crime Drama movie written by Richard Sale and directed by Lewis Allen and produced by Robert Bassler under the banner of Libra Productions. The story concerns a small California town whose tranquility is shattered when the train of the president of the United States is scheduled to make a stop in the town, and a hired assassin and his henchmen take over a home that provides a perfect vantage point from which to assassinate the president. Suddenly features Frank Sinatra in the lead role along with an ensemble cast including Sterling Hayden, Frank Sinatra Jr, James Gleason, Nancy Gates, Kim Charney and Willis Bouchey. The screenplay is written by Richard Sale which is inspired from Active Duty by Richard Sale. The music was composed by David Raksin. Cinematography was done by Charles G. Clarke and editing by John F. Schreyer. The film has a running time of 75-77 or 82 minutes. It was released on 17th September 1954 and it received positive reviews from critics when it was released. The film made a box office gross of $0 million. Distribution rights for the film were acquired by United Artists. The story concerns a small California town whose tranquility is shattered when the train of the president of the United States is scheduled to make a stop in the town, and a hired assassin and his henchmen take over a home that provides a perfect vantage point from which to assassinate the president.

This is film is directed by Lewis Allen.