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


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


Frightening Extraordinary Erotic Hilarious Weird See more »


Adult | Comedy | Horror


See all certifications »

Did You Know?


Filming began in March 1975. A rough cut was completed in May, and the various flashback sequences were shot in July and August. 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 »


Gert: He's quite a man, isn't he?
Willene: Well, part of him is a man, the other part I'm not too sure about.
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 Midnight Movies: From the Margin to the Mainstream (2005) See more »


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

User Reviews

If You're Looking For Decency, Don't Come In This Room!
4 December 2006 | by ElijahCSkuggsSee all my reviews

Absurdly weird and funny porno flick you say? Count me in! So I just finished Thundercrack! a couple days ago. And it's taken me this long to collect my thoughts on this weird-ass film. All I knew going in is that it was weird, funny and full of sex. And that hits it right on the nose.

In the midst of a dark and stormy night, seven strangers find shelter at the residence of one Mrs. Gert Hammond. She's one character you have never come across in all of your film viewing. That's for sure. Mrs. Hammond takes them all in with open arms and is happy and proud to have company on this particular night. But she fails to realize that she's gone completely insane. And you will realize this in a matter of seconds when watching the movie. And the actress playing Hammond does a fantastic job pulling off one of the strangest performances to date. Most of the time you're watching her act with pure curiosity, the next moment you're laughing your ass off. The scene where she's getting ready for her first arrival had me really laughing. Anyways, her guests are four men and three women. A couple guests know one another and the rest "really" get to know one another. Thundercrack! is chock full of flashing lightning, pickled husbands, sex, horny gorillas, gay sex and one used up cucumber.

There are many upsides to this wonder of a porn flick, but there are a couple downsides also. For me, the flick was pretty difficult to hear. It's a rare movie that has not received the proper treatment it deserves. The music is too loud when people are talking. And sometimes when you're trying to read lips, the lightning from the Thundercracks! can't let you see what they're saying. This is a big problem, because the dialogue is where the movie shines. But if this problem is resolved, wowee, this could be one hell of a treat for the unsuspecting viewer. There's a rumor that a nicely packaged DVD is coming out....who knows when though.

Again, this movie is perversely strange and strangely perverse. For many a year I've yearned for a movie that could compete with my messed up dreams. And this is it. If you like porn, witty dialogue, funny acting, cucumbers, and just overall weirdass movies, you'll definitely get a kick out of Thundercrack! Right Chandler? 8.5 outta 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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