February: The Wendell Baker Story opens in theatres starring Luke Wilson, Owen Wilson, Will Ferrell
February 10: Curious George starring the voice of Will Ferrell
April 21: Hoot with Luke Wilson in a supporting role. Family film produced by Jimmy Buffett
May 19: Over the Hedge (animated, Dreamworks) starring the voice of Steve Carrell, Bruce Willis, William Shatner (Dodgeball).
June 2: The Break Up starring Vince Vaughn and Jennifer Aniston. Also Jon Favreau, Jason Bateman, Justin Long, Peter Billingsley, Keir O'Donnel (Wedding Crashers)
June 2: Nacho Libre starring Jack Black.
June 9: Cars starring the voice of Owen Wilson
July 4: Evan Almighty starring Steve Carell
July 14: You, Me, and Dupree starring Owen Wilson, Matt Dillon, Kate Hudson, Michael Douglas
July 14: The Super-Ex starring Luke Wilson and Uma Thurman
July: The Mirror (independent-style release?) starring Ben Stiller, Christine Taylor
August 4: Talladega Nights: The Ballad of Ricky Bobby starring Will Ferrell.
Fall: Tenacious D in: The Pick of Destiny starring Jack Black, Kyle Gass, and Ben Stiller
Fall: Idiocracy starring Luke Wilson. With Justin Long, David Herman, Stephen Root, Directed by Mike Judge (Office Space) 
Fall: Head Games starring Vince Vaughn, directed by David O. Russell (Three Kings, I Heart Huckabees, Exec. Prod on Anchorman)
Christmas: A Night at the Museum starring Ben Stiller, Carla Gugino

Also:
Winter/Spring?: Mini's First Time with Luke Wilson. A rebellious girl (Nikki Reed) hooks up with an escort agency where her father (Alec Baldwin) is a client.
Spring?: Danny Roane: First Time Director with Jack Black, Ben Stiller, and Andy Dick (also Director). Straight to video?
Spring?: Little Miss Sunshine (independent feature) starring Steve Carell, Greg Kinnear, Toni Collette
Fall?: Get Smart starring Steve Carell
Christmas?: Holiday starring Jack Black, Cameron Diaz, Kate Winslet, directed by Nancy Meyers (Father of the Bride, What Women Want, Something's Got to Give). Romantic comedy.