Box Office Bomb: Ultimately, the public listened to Cosby's cries to stay away from this movie; Budget, $24 million. Box office, $4,615,255.
Creator Backlash: Bill Cosby might have co-produced and co-wrote this film, but he ended up begging audiences not to see it shortly before its release. When the film won a Golden Raspberry Award, Cosby asked the studio make his statuette out of gold and marble so he could accept it in style.
Leonard Part 6 was one of the handful of movies that led to distributor Columbia winding up in Sony's hands by 1991, though the damage this film did was more reputation-oriented.
It also blasted apart the career of director Paul Weiland, who had been labeled as "Inexperienced". He didn't direct another theatrical movie for 7 years and didn't have a very visible role in Hollywood since.
Old Shame: The film was so bad, Bill Cosby himself told everyone to avoid seeing it, before it even hit theaters. It should also be noted that "William H. Cosby Jr., Ed.D." has story credit, and that the movie is "A Sah Enterprises, Inc. Production"... and guess whose company that is.