Superstar is a 1999 American romantic comedy film and a Saturday Night Live spin-off about a quirky, socially inept girl named Mary Katherine Gallagher.

It stars Molly Shannon, Will Ferrell, Elaine Hendrix, Harland Williams, Mark McKinney, who appeared in many of the Mary Katherine Gallagher SNL skits on TV, and Glynis Johns in her final film.

[4] Molly Shannon received a nomination for Blockbuster Entertainment Award "Favorite Actress - Comedy" but lost out to Heather Graham in Austin Powers: The Spy Who Shagged Me.

Caught kissing a tree, she is placed in special education, where she befriends Helen Lewengrub, and new “bad boy” student Eric Slater takes an interest in her.

Rotten Tomatoes gives the film a score of 32% based on reviews from 74 critics, with the consensus: "Dumb script and flat jokes made this another SNL misfire.

[8] James Berardinelli of ReelViews, who gave the film two out of four stars, said that "Molly Shannon is a likable, energetic performer" and some of the jokes were "actually funny", but there would still not be "enough here to justify a feature-length movie".

[9] Dennis Harvey of Variety magazine gave a positive review, calling the film a "pleasant surprise" as he expected only mediocrity from another Saturday Night Live adaptation.