This is a pretty rad movie.
Playmate Claudia Jennings plays a tough chick named Karen who works at a cat food factory. She gets tired of her lecherous boss pinching her buttocks without permission and quits on the spot after throwing a few cans of cat food at the dirty old man. From here? She embarks on a new career in roller derby, skating for a team called The Avengers. A horny drunken doctor has to check her out before she can skate. Before you know it she's boffing the team manager, who just so happens to be married to a woman named Tina. Oops. At any rate, Karen makes her way up the roller derby ranks much to the dismay of the former Avengers skating star captain, who winds up demoted to the other team. A feud starts - but Karen is a rebel, she gets a tattoo. She also doesn't always play by the rules. This raises the ire of the team's owner. He trash talks her but no way, she's not having any of it.
Eventually her teammates turn on her. She's got a sweet muscle car with a big silver horse on the hood and a zebra print top. These bitches key it! Karen goes home to see her mom, but mom's a waste of space. Drama ensues but then, Karen's about to get replaced by a hot black chick. Is her career over so soon after she hits the big time? Why did her teammates throw her on a pool table in a bar and rip off all of her clothes? Why did she bone that married guy on a table in the middle of the roller derby track?
Roger Corman produced, Vernom Zimmerna directed. He also directed Fade To Black and a few other movies I do not know. Roberta Collins shows up in this and Karen's mother is Kathleen Freeman - the IMDB says she provided the voice of an 'old woman' in Shrek and she was also Peggy Bundy's mom on Married With Children. Weird.
This poster is great.