All five of this movie's leading men later starred in at least one successful TV series: Richard Long (Valle de pasiones (1965)), Marshall Thompson (Daktari (1966)), William Reynolds (F.B.I. (1965)), Jack Kelly (Maverick (1957)), and David Janssen (El fugitivo (1963)).
Richard Long (Paul Able) and Marshall Thompson (Tom Markel) were brothers-in-law in real life as Long's elder sister Barbara Long was married to Thompson from 1949 until his death in 1992.
In its first run engagements, it was widely shown on the lower half of a double bill with La venganza del hombre monstruo (1955).
The gelatinous ring used for POV shots is the same one used two years earlier for Vinieron del espacio (1953).