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Prom Night III: The Last Kiss (1989)

The malevolent spirit of Mary Lou Maloney returns to Hamilton High, where she manipulates a naive male student into helping her wreak havoc on the school.


, (as Peter Simpson)



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Cast overview, first billed only:
... Alex Grey
... Sarah Monroe (as Cyndy Preston)
... Shane Taylor
Courtney Taylor ... Mary Lou Maloney
... Andrew Douglas
... Leonard Welsh
... Mr. Weatherall
Tom Nursall ... Coach
... Mr. Walker
London Juno ... Leah Grey (as Juno Mills Cockell)
Lesley Kelly ... Miss Richards
Terry Doyle ... Jack Roswell
... Darren
Nicole Evans ... Gail
Sabrina Boudot ... Patsy Riviera


Mary Lou, the prom queen burned to death by her boyfriend back in the fifties, has escaped from hell and is once again walking the hallways of Hamilton High School, looking for blood. She chooses as her escort in world of the living Alex, an average depressed student with dreams of one day becoming a doctor. As Mary Lou begins to get back into form, the body count starts climbing and the graduating class of Hamilton High is once again smaller than expected. Written by Jean-Marc Rocher <rocher@fiberbit.net>

Plot Summary | Add Synopsis


A Romantic Comedy From Hell. See more »


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Release Date:

28 June 1990 (USA)  »

Also Known As:

Baile de Formatura 3  »

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Did You Know?


Brock Simpson is the only actor who appeared in all four Prom Night movies. See more »


At about 59 min, after Leah wakes up Alex, there's a boom mic visible. See more »


Mary Lou Maloney: Poor thing. He didn't stand a chance.
Alex Grey: Hi! Ho. You are real?
See more »


Followed by Prom Night IV: Deliver Us from Evil (1992) See more »


She's Gonna Freak You
Written by Wes Williams (as W. Williams)
Performed by Wes Williams (as Maestro Fresh-Wes)
By Permission of D.S.G. Publishing
See more »

Frequently Asked Questions

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User Reviews

Prom Night III: The Last Kiss
7 April 2011 | by See all my reviews

Prom Night III continues with the Mary Lou storyline, but takes it in a lighter and more humorous direction. Mary Lou (Courtney Taylor) unleashes herself from hell using a nail file to cut the chains. It's from there that she begins to stalk a student named Alex (Tim Conlon). Her mission is to get Alex to be with her forever. There is just one thing standing in her way. Alex's girlfriend Sarah (Cynthia Preston). She starts to kill some of the people that get in his way for success. When he struggles in biology, she finishes his test and then turns his bio teacher into a human banana split. A guidance counsellor questions Alex's grades, so she kills her off using battery acid. This goes on and on and each time Alex has to dispose of the bodies by burying them in the football field. With Prom Night looming, the police eventually find the corpses and of course point the finger at our lead character. Will Alex escape and send Mary Lou back to hell, or will she claim her man and get rid of Sarah?

Prom Night III definitely has the best special effects of all the films in the series. The banana split murder in particular is pretty unique and visually well done. There is just something about this one that seems kind of cheap. It's like a cheap version of part II. The actress that plays Mary Lou in this one is different from the previous installment. She isn't as good as the Mary Lou from the second film. She was darker and more sinister in part II. In The Last Kiss, they try hard to make her seductive and humorous, much less evil and dark. The performance isn't as good.

I also don't understand the decision making from the lead character Alex. He knows this dead chick is killing all these people, and instead of telling anyone else, he just continues implicating himself by burying the bodies. This movie also has a 60's and 70's 'Grease' feel to it as well with Alex's leather jacket and the greased back hair. Prom Night III seems to suffer with a personality disorder. It tries to be funny, tries to be supernaturally spooky, and tries to add a bunch of different elements to it as well. It's all over the place and not as good as part II.

Mary Lou is completely different from the vixen we knew her as in "Hello Mary Lou". The ending is also very bizarre, but original at least. Prom Night III doesn't take itself very seriously, and neither do I.


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