Nolan needed that to make the movie entertaining. Corman could use that to make the movie entertaining. Corman had a gift for making people enjoy the hour and a half folks give him. It won't win awards but folks like to shit on smiles when they can laugh.
"I will intentionally film the entire movie with the lense cap on. If you can't see the movie, that's your problem. It means you're not a true cinephile like me. Movies weren't meant to be watched"