The Avengers (2012)
Cowboys and Aliens (2011)
Iron Man 2 (2010)
Oobermind (2010) (voice)
Sherlock Holmes (2009)
Up Close with Carrie Keagan (TV)
Star Movies: Live from the Red Carpet (2009) (TV)
The 81st Annual

(2009) (TV)
The Soloist (2009)
Chaplin Anniversary Edition: Strolling Into the Sunset (2008)
Chaplin Anniversary Edition: Chaplin the Hero (2008)
Chaplin Anniversary Edition: The Most Famous Man in the World! (2008)
Tropic Thunder: Rain of Madness (2008)

(2008)

(2008) (uncredited)

(2008)
The Movie Loft (TV)
Eigo de shabera-night (TV)
Resumen - 56º festival internacional de cine de San Sebastián (2008) (TV)
HBO First Look (TV)
AFI Life Achievement Award: A Tribute to Warren Beatty (2008) (TV)
Spike Guys Choice (2008) (TV)
Imagine (TV)
2008

(2008) (TV)
Access Hollywood (TV)
The Modern Warrior (2007) (TV)
This Is Zodiac (2007)
Out of Control: 10 Celebrity Rehabs Exposed (2007) (TV)
Payback (TV)
Charlie Bartlett (2007)
Lucky You (2007)
Zodiac (2007)
The 79th Annual

(2007) (TV)
Film Independent's 2007 Spirit Awards (2007) (TV)
The Weight of the Line: Animation Tales (2006)
One Summer in Austin: The Story of Filming 'A Scanner Darkly' (2006)
American Masters (TV)
The 4th Annual TV Land Awards (2006) (TV)
Corazón de... (TV)
Sunday Morning Shootout (TV)
Fur: An Imaginary Portrait of Diane Arbus (2006)
A Scanner Darkly (2006)
The Shaggy Dog (2006)
A Guide to Recognizing Your Saints (2006)
Good Night, and Good Luck. (2005)
Kiss Kiss Bang Bang (2005)
Game 6 (2005)
GMTV (TV)
Film '72 (TV)
The Showbiz Show with David Spade (TV)
Larry King Live (TV)
Magacine (TV)
Hubert Selby Jr: It/ll Be Better Tomorrow (2005) (Narrator)
The Paul O'Grady Show (TV)
Breakfast (TV)
The Outsider (2005)
Last Call with Carson Daly (TV)
Tsunami Aid: A Concert of Hope (2005) (TV)
The Kennedy Center Honors: A Celebration of the Performing Arts (2004) (TV)
St. Richard of Austin (2004) (TV)
Eros (2004)
Between the Lines (2004) TV mini-series
Tangled Up in Blue (2004) (TV)
Movie House (TV)
The Frank Skinner Show (TV)
The Wayne Brady Show (TV)
Charlie: The Life and Art of Charles Chaplin (2003)
Hollywood Celebrates Denzel Washington: An American Cinematheque Tribute (2003) (TV)
Anatomy of a Scene (TV)
Gothika (2003)
The Singing Detective (2003)
Whatever We Do (2003)
Last Party 2000 (2001)
7th Annual Screen Actors Guild Awards (2001) (TV)
Chaos Rising: The Storm Around 'Natural Born Killers' (2001)
Lethargy (2002)
Auto Motives (2000)
Wonder Boys (2000)
Black and White (1999)
Bowfinger (1999)
Friends & Lovers (1999)
In Dreams (1999)
U.S. Marshals (1998)
The Gingerbread Man (1998)
Hugo Pool (1997)
Two Girls and a Guy (1997)
One Night Stand (1997)
Danger Zone (1996)
Howard Stern (TV)
Restoration (1995)
Mr. Willowby's Christmas Tree (1995) (TV)
Home for the Holidays (1995)
Richard III (1995)
1995

(1995) (TV)
A Century of Cinema (1994)
Only You (1994)
Natural Born Killers (1994)
Hail Caesar (1994)
The Last Party (1993)
The 65th Annual

(1993) (TV)
Luck, Trust & Ketchup: Robert Altman in Carver Country (1993)
Short Cuts (1993)
Heart and Souls (1993)
Chaplin (1992)
1992

(1992) (TV)
Soapdish (1991)
Too Much Sun (1990)
Air America (1990)
Chances Are (1989)
True Believer (1989)

(1989)
The 61st Annual

(1989) (TV)
Get Out the Vote (1988) (TV)
1969 (1988)
Rented Lips (1988)
Johnny Be Good (1988)

(1987)
The Pick-up Artist (1987) (as Robert Downey)
Dear America: Letters Home from Vietnam (1987) (TV) (voice)
America (1986)
Back to School (1986)
Mussolini: The Untold Story (1985) TV mini-series (as Robert Downey)
Weird Science (1985) (as Robert Downey)
Tuff Turf (1985) (as Robert Downey)
Deadwait (1985)
Firstborn (1984)
Baby It's You (1983)
Up the Academy (1980) (uncredited)
Moment to Moment (1975) (uncredited)
Greaser's Palace (1972) (uncredited)
Pound (1970) (as Bob Downey)