20 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.



(story), (screenplay) | 1 more credit »




Cast overview, first billed only:
... Mrs. Gert Hammond
... Bing / Medusa
... Sash
Phillip Heffernan ... Chandler Wilson (as Mookie Blodgett)
Moira Benson ... Roo
Rick Johnson ... Toydy McNeil
Maggie Pyle ... Willene Cassidy
Ken Scudder ... Bond
Curt McDowell ... Medusa / Gerald Hammond (as Pamela Primate)
Bernie Boyle ... Señor Tostada
Mark Ellinger ... Charlie Hammond
Virginia Giritlian ... Sarah Lou Phillips
Michelle Gross ... Hula Hoop Girl (as Michele Gross)
Laurie Hendricks ... Simon Cassidy's Mother
Billy Paradise ... Mrs. Harlan


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


The picture they said should never have been made will shock you right out of your sordid cubicle! See more »


Adult | Comedy | Horror





Release Date:

29 December 1975 (USA)  »

Also Known As:

Раскаты грома!  »

Filming Locations:

Company Credits

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Technical Specs


(original) | (theatrical)

Sound Mix:

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Did You Know?


Curt McDowell and Mark Ellinger originally conceived the movie as an outlet to fulfill their sexual fantasies, but when they enlisted George Kuchar to write the script, his dialogue and ideas (such as the implication of bestiality) were so bizarre and over-the-top that it evolved from a short porno into an art film epic. 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 »


[Chandler's and Toydy's altercation resulted in the destruction of Gert's lamp]
Chandler: Sorry about the lamp. Look, I'll give you six bucks for it. Will that be enough?
Mrs. Gert Hammond: I don't want your money! You people have lit up my life more brightly than that lamp could ever have done!
See more »


Referenced in Midnight Movies: From the Margin to the Mainstream (2005) See more »


Bridal Chorus
Composed by Richard Wagner
Performed by Mark Ellinger
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User Reviews

Nah Na Na Na Na Na Nah! Thun-Der! You've been…. Thundercrack'd!
14 September 2006 | by See all my reviews

Referring to "Thundercrack!" as simply being a weird cult flick would be a serious understatement and actually a direct insult, since certain people around this website already tend to call mainstream movies like "Memento" or "Pulp Fiction" weird and confusing. Weird? Not quite… A term to summarize "Thundercrack" in one simple word has yet to be invented. The closest we've got now is "extravagant", "demented" and maybe also "totally f***ed up". This movie can't even be categorized in one genre, as it's hardcore pornography as well as slick comedy as well as cheesy 70's horror. Let's just stick to the old cliché saying: it has to be seen to be believed! Imagine yourself a typical low-budget horror opening, in which random people gather around an old dark mansion during a nightly thunderstorm. They're all slightly eccentric characters with unusual backgrounds and/or odd personalities and, naturally, the female owner of the mansion is the queen of all madness. Mrs. Gert Hammond (excellent performance by Marion Eaton) is a mentally messed up widow in a permanent state of delirium, constantly babbling to her deceased husband AND extremely addicted to peeled cucumbers. Her guests soon begin to physically experiment with themselves and each other and these sexual outbursts become gradually odder. Masturbation and ordinary hetero-sex at first, but before you properly realize it; you're up to your neck in gay sex, voyeurism, sex with peculiar attributes and even bestiality. This may sound like devastating cult-cinema, but director Curt McDowell captures it all on film like it's the most common thing in the world and after a while you almost begin to wonder whether YOU aren't the abnormal one for not yet having experienced sexual intercourse with a horny gorilla! "Thundercrack!" is shot in black & white and features a handful of stylish moments, despite the trashy subject matter and the obvious lack of financial means. This movie is available in two versions, but I can safely say already that even the 'cut' version (120 minutes instead of 150) is more than weird enough for every avid fan of offbeat cinema on this planet. Watch it, and I assure you'll never eat a cucumber again in your life!

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