|Directed by||Jack Cardiff|
|Produced by||Robert D. Weinbach|
|Written by||Edward Mann
Robert D. Weinbach
|Music by||Basil Kirchin
Jack Nathan (uncredited)
|Edited by||John Trumper|
Getty Pictures Corp.
|Distributed by||Columbia-Warner (UK)
Columbia Pictures (US)
|Release date(s)||October 1974 (UK)
25 September 1974 (US)
|Running time||92 minutes|
A deranged genetic scientist abducts college students as human guinea pigs that he uses in his experiments in crossbreeding plants with humans. The failed experimental mutants are then given to a cruel circus freakshow owner who exploits them to the fullest. However, the mutants and the circus freaks will not be denied justice.
- Donald Pleasence - Professor Nolter
- Tom Baker - Lynch
- Brad Harris - Brian Redford
- Julie Ege - Hedi
- Michael Dunn - Burns
- Scott Antony - Tony
- Jill Haworth - Lauren
- Olga Anthony - Bridget
- Lisa Collings - Prostitute
- Joan Scott - Landlady
- Toby Lennon - Tramp
- John Wireford - Policeman
- Eithne Dunne - Nurse
While filming Tom Baker, who went by the stage name "Popeye" because of his uncanny ability to dislocate his eyes from their sockets, used to frequent a bar across the street between shooting scenes. During one such outing one of the waitresses made it clear through her attitude that she didn't approve of Baker, who is white, being friends with Ingram who is black. To get back at her, Ingram would pop Pop his eyes from their sockets when she passed their table, frightening her and when she tried to point it out to other waitresses and patrons he would then relocate his eyes back in their sockets and then he and Baker would pretend nothing happened. According to the film's producer and co-writer Robert D. Weinbach, the role for Professor Nolter was originally intended for famed horror actor Vincent Price, however due to difficulties with Price's agent the idea was abandoned.
- The Radio Times wrote, "the discomfiting template may be that of Freaks (the party scene is a direct lift from Tod Browning's 1932 classic) but its prurient atmosphere is most definitely rooted in 1970s British sleaze." 
- DVD Verdict wrote, "this is a disjointed and occasionally uninspired experience that has moments of brilliance and equally aggravating segments of outright idiocy." 
- British Horror Films wrote, "it's a cross between every mad doctor film you've ever seen, and Tod Browning's Freaks, yet without that film's subtlety and pathos." 
- "The Mutations (1973) | BFI". Explore.bfi.org.uk. Retrieved 2014-07-24.
- "The Mutations (1974) - Filming Locations". IMDb.com. IMDb.com. Retrieved 8 July 2014.
- "The Mutations (1974) - Trivia". IMDb.com. IMDb.com. Retrieved 8 July 2014.
- "The Mutations (1974) - Release Info". IMDb.com. IMDb.com. Retrieved 8 July 2014.
- "The Mutations | Film review and movie reviews". Radio Times. 2013-04-08. Retrieved 2014-07-24.
- "DVD Verdict Review - The Freakmaker". Dvdverdict.com. 2005-10-27. Retrieved 2014-07-24.
- "The Mutations | 1972". Britishhorrorfilms.co.uk. Retrieved 2014-07-24.
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