The New York Times has this filmography. Amazing amount of work he was involved with.
FILM
Drillbit Taylor (2008)
Role: Story By
Maid in Manhattan (2002)
Role: Story By
Just Visiting (2001)
Role: Screenplay
New Port South (2001)
Role: Producer, Song, Executive Producer, Screenplay
Reach the Rock (1998)
Role: Producer, Screenplay
Flubber (1997)
Role: Screenplay, Producer
Home Alone 3 (1997)
Role: Screenplay, Producer
101 Dalmatians (1996)
Role: Screenplay, Producer
Baby's Day Out (1994)
Role: Producer, Screenplay
Miracle on 34th Street (1994)
Role: Screenplay, Producer
Wes Craven's New Nightmare (1994)
Role: Special Thanks
Beethoven's 2nd (1993)
Role: Special Effects
Dennis the Menace (1993)
Role: Supervisor, Producer, Screenplay
Beethoven (1992)
Role: Screenplay
Home Alone 2: Lost in New York (1992)
Role: Characters as Source Material, Screenplay, Producer
Career Opportunities (1991)
Role: Producer, Screenplay
Curly Sue (1991)
Role: Producer, Screenplay, Director
Dutch (1991)
Role: Screenplay, Producer
Only the Lonely (1991)
Role: Producer
Home Alone (1990)
Role: Producer, Screenplay
National Lampoon's Christmas Vacation (1989)
Role: Screenplay, Producer
Uncle Buck (1989)
Role: Director, Producer, Screenplay
She's Having A Baby (1988)
Role: Director, Producer, Screenplay
The Great Outdoors (1988)
Role: Executive Producer, Screenplay
Planes, Trains and Automobiles (1987)
Role: Song, Producer, Director, Screenplay
Some Kind of Wonderful (1987)
Role: Producer, Screenplay
The Lost Boys (1987)
Role: Photography
Ferris Bueller's Day Off (1986)
Role: Producer, Director, Screenplay
Pretty in Pink (1986)
Role: Executive Producer, Screenplay
National Lampoon's European Vacation (1985)
Role: Screenplay, Story By
The Breakfast Club (1985)
Role: Screenplay, Producer, Director
Weird Science (1985)
Role: Director, Screenplay
Sixteen Candles (1984)
Role: Director, Screenplay
Mr. Mom (1983)
Role: Screenplay
Nate and Hayes (1983)
Role: Screenplay
National Lampoon's Vacation (1983)
Role: Screenplay, Song
National Lampoon's Class Reunion (1982)
Role: Screenplay
TELEVISION
67th Annual Academy Awards (TV Special)
Role: Archival Footage
Delta House (TV Series)
Role: Writer
Ferris Bueller (TV Series)
Role: Story By
Hal Roach: Hollywood's King of Laughter (TV Special)
Role: Actor
Making of "Home Alone 2: Lost in New York," The (TV Special)
Role: Actor
Uncle Buck (TV Series)
Role: Story By
IN DEVELOPMENT
Getting to Know You
Role: Producer