19 user 37 critic

Thundercrack! (1975)

With a killer gorilla on the loose, a group of strangers find themselves stranded at a remote mansion of a grieving madwoman one dark and stormy night. They indulge in swapping bizarre personal backstories - and bodily fluids.


Curt McDowell


Mark Ellinger (story), George Kuchar (screenplay) | 1 more credit »




Cast overview, first billed only:
Marion Eaton ... Mrs. Gert Hammond
George Kuchar ... Bing / Medusa
Melinda McDowell ... Sash
Phillip Heffernan ... Chandler Wilson (as Mookie Blodgett)
Moira Benson Moira Benson ... Roo
Rick Johnson Rick Johnson ... Toydy McNeil
Maggie Pyle Maggie Pyle ... Willene Cassidy
Ken Scudder Ken Scudder ... Bond
Curt McDowell ... Medusa / Gerald Hammond (as Pamela Primate)
Bernie Boyle Bernie Boyle ... Señor Tostada
Mark Ellinger Mark Ellinger ... Charlie Hammond
Virginia Giritlian Virginia Giritlian ... Sarah Lou Phillips
Michelle Gross Michelle Gross ... Hula Hoop Girl (as Michele Gross)
Laurie Hendricks Laurie Hendricks ... Simon Cassidy's Mother
Billy Paradise Billy Paradise ... Mrs. Harlan
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Take a clichéd Horror-story beginning, a remote Gothic mansion, an insane hostess, a group of strangers (four men, three women and a gorilla) and you pretty much begin to see that this is not meant to be a serious film, but rather a parody of several other (older and better) ones. Social and sexual confusion & misunderstanding guarantees that this odd cast of characters will come together and entertain & amuse. Written by Len Massaar

Plot Summary | Plot Synopsis


An epic of massive impact See more »


Adult | Comedy | Horror


See all certifications »

Did You Know?


There are conflicting remembrances as to whether she had the stomach flu or merely too much to drink, but regardless, at the 1975 Filmex premiere screening, Marion Eaton became violently ill and spent the remainder of the evening hugging the toilet bowl, just as her character did in the movie. See more »


Early in the dialogue, it's established that Bond has a dodo bird tattooed on his thigh. He's later seen nude in extensive detail and sports no tattoos. See more »


Sash: I was ordered to lend you a hand and nothing more. Those were the orders from our General over there, with her junk-jewelry medals.
See more »

Alternate Versions

The original version included the 1947 color cartoon/commercial "Chiquita Banana Tells a Fortune," but this was removed from all subsequent edits of the film. See more »


Referenced in Discovering 'Evil Dead' (2002) See more »


Bridal Chorus
Composed by Richard Wagner
Performed by Mark Ellinger
See more »

User Reviews

Surreal and bizarre porno masterpiece.
16 March 2006 | by HumanoidOfFleshSee all my reviews

"Thundercrack!" starts out as a horror flick with some people taking refuge in a ghostly mansion during a storm at the countryside.Their hostess is one of the weirdest female characters ever shown on screen.Dead drunk,horny,delirious:Marion Eaton plays the role with a vengeance.What is the secret with her dead husband?Where is her son? Why does she keep human body parts in the cellar?It really doesn't matter much.Very soon,everyone gets involved in something much more interesting:having sex in every which way possible and impossible.Curt McDowell's "Thundercrack!" is easily one of the most bizarre porno films I have ever seen.It's shot in a black and white and loaded with raunchy hard core homo/hetero sex.The script is supremely strange and the acting is fine.Marion Eaton is especially memorable as a creepy Mrs Gert Hammond.I can't wait to see a fully uncut 152-minutes long version of this film.9 out of 10.

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Release Date:

29 December 1975 (USA) See more »

Also Known As:

Раскаты грома! See more »

Filming Locations:

San Francisco, California, USA

Company Credits

Show more on IMDbPro »

Technical Specs


(original) | (theatrical)

Sound Mix:


Aspect Ratio:

1.33 : 1
See full technical specs »

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