Other titles: Conciencias negras | Yo aprendí a matar | Der Attentäter | Ik moet doden | Je dois tuer | Meu Ofício é Matar | Meu Ofício É Matar | Внезапно | By i alarm | Ei armoa | Tappaja | Plötzlich | Oi tromokrates | Οι τρομοκράτες | Váratlan | Gangsters in agguato | 三人の狙撃者 | Nagle | O Seu Ofício Era Matar | Внезапный | De repente | Repentinamente | Sucedió en Suddenly | Attentatorn | Kör Tuzak
Year Released: 1954
Month released: September
Certification: Argentina:13, Australia:A, Australia:PG, Canada:PG, Finland:(Banned), Finland:K-14, Germany:12, Italy:T, Norway:12, Philippines:PG-13, Spain:A, Sweden:15, United Kingdom:A, United Kingdom:PG, United States:Approved, United States:Not Rated, United States:TV-PG, United States:Unrated, West Germany:16
Directors: Lewis Allen
Writers: Richard Sale
Cast: Charles Smith, Charles Wagenheim, Christopher Dark, Clark Howat, Dan White, Frank Sinatra, Hans Moebus, James Gleason, James O'Hara, John Beradino, Kem Dibbs, Kim Charney, Nancy Gates, Paul Frees, Paul Wexler, Richard Collier, Roy Engel, Sterling Hayden, Ted Stanhope, Willis Bouchey
Producers: Robert Bassler
Production Companies: Libra Productions Inc.
Art Department: Irving W. Sindler
Camera and electrical department: Bob Gough
Certification: Argentina:13, Australia:A, Australia:PG, Canada:PG, Finland:(Banned), Finland:K-14, Germany:12, Italy:T, Norway:12, Philippines:PG-13, Spain:A, Sweden:15, United Kingdom:A, United Kingdom:PG, United States:Approved, United States:Not Rated, United States:TV-PG, United States:Unrated, West Germany:16
Cinematographers: Charles G. Clarke
Colorization: Black and White
Costume department: Jack Masters
Country: United States
Distributors: Alpha Video Distributors, Artistas Unidos, Best Entertainment, BuckRay TV, Cat-Film Distributions, Continental Video, Cosmopol-Film, Delta Music & Entertainment, Finnkino, Hal Roach Studios, Image Entertainment, Legend Films, Los Artistas Unidos de América del Sur, Paycom Multimedia, Penteo Films S.L., Reel Media International, REM Distribution, Sony Music Département Vidéo, Stream Go Media, The Roan Group, United Artists, United Artists (Australasia), United Artists Film-Verleih, WME Home Entertainment, Yleisradio (YLE)
Editors: John F. Schreyer
Languages: English
Other Companies: International Alliance of Theatrical Stage Employees (IATSE)
Production Managers: Charles Hall
Script and Continuity Department: Doris Drought
Set Decorators: Howard Bristol