Fisher became an unlikely pop-culture icon when she -- at the age of 17 -- shot the wife of her boyfriend, Joey Buttafuoco, in 1992.

Fisher served seven years in prison for the non-fatal shooting, while Buttafuoco served four months for statutory rape.

The notorious couple briefly dated again this spring, but have both since reconciled with their respective estranged spouses.

Bellera sold the tape to Red Light District Video while he and Fisher were separated, according to David Krieff, the TV executive who produced reunion specials with Fisher, Buttafuoco and Buttafuoco's ex-wife, Mary Jo.

Red Light has also sold sex tapes featuring Paris Hilton and Dustin Diamond.

Fisher, who discovered the deal in August, is reportedly upset about her video's impending release.

"She's disgusted," Krieff told the Post. "I feel bad for Amy and Lou. I think they were having a fight and he made a bad decision that's coming back to haunt them now."

A spokesman for Red Light was not available for comment.