Rudolf “Rudi” Fehr helped edit what American crime mystery film directed by Alfred Hitchcock?
Rudi Fehr:  He had more than thirty credits as an editor of feature films including "Key Largo" (1946), "Dial M for Murder" (1954), and "Prizzi's Honor" (1985). Dial M for Murder: Dial M for Murder is a 1954 American crime mystery film directed by Alfred Hitchcock, starring Ray Milland, Grace Kelly, Robert Cummings and John Williams.
Dial M for Murder