Sour Grapes is a 1998 American black comedy film written and directed by Larry David and starring Steven Weber, Craig Bierko, Viola Harris, Karen Sillas, Robyn Peterman and Matt Keeslar.

By the time he reveals the joke, Richie has already tried to kill his mother (by staging a fake break-in in hopes of triggering a fatal heart attack) to spare her the grief of losing him.

"[8] He criticized its mean-spirited nature, saying "Sour Grapes is a comedy about things that aren't funny [...] Larry David, who wrote and directed Sour Grapes, apparently thinks people are amused by cancer, accidental castration, racial stereotypes and bitter family feuds.

"[8] Leonard Klady of Variety wrote in his review that, "the idea of good intentions misfiring is a driving force of the humor in Sour Grapes.

[10] In a later episode, David's character tells his wife to stop lending people the film, and says he doesn't believe a friend who claimed to have enjoyed the movie, stating she was just trying to be polite.