The important thing, once you get 'em laughing, is to keep 'em laughing until you're through. With a 90-minute feature, you've got to stop the laughter and then pick it up again, which is tough.
— Hal Roach
The greatest comedies that were made by anybody were made in two reels; I don't care who it was.
You can't make people laugh for more than half an hour and be consistent.
Harold Lloyd was not a comedian. But he was the finest actor to play a comedian that I ever saw.