The WGA held the gala ceremony for its outstanding achievement awards in concurrent festivities Saturday night in Los Angeles and New York.
The award for adapted screenplay went to Robert Pulcini and Shari Springer Berman for "American Splendor," based on the comic book series by Harvey Pekar and the novel by Harvey Pekar and Joyce Brabner.
"The Dad Who Knew Too Little," written by Matt Selman for Fox's "The Simpsons," won the award for best animated script.
Larry Gelbart won the award for original long form for "And Starring Pancho Villa as Himself," telecast on HBO.
The WGA award for a comedy series went to "No Sex, Please, We're Skittish," to Bob Daily for NBC's "Frasier."