"Mr. Antolini said that anybody that could write like D.B. had no business going out to Hollywood."

Salinger admired F. Scott Fitzgerald, who attempted a career in Hollywood but couldn't alter his writing style to suit movie scripts.  Salinger himself also had trouble with a Hollywood adaptation of his short story "Uncle Wiggly in Connecticut" (renamed "My Foolish Heart").  Holden's views on Hollywood reflect Salinger's views.