"Screen Director's Playhouse" broadcast a 30 minute radio adaptation of the movie on February 3, 1950 with Edward G. Robinson reprising his film role.
George Raft declined the role of George Leach because it was too small.
Seventy-five carpenters were used to build the Ghost.
The first movie to have its world premiere on a ship: the luxury liner "America" during a trip from San Francisco to Los Angeles.