There's One Born Every Minute.

Lemuel P. Twine, "Lem", runs the Twine's Tasty Pudding Powder Company. Lem is unaware that his financial backer, Lester Cadwalader Sr., wants him to run in order to secure that the current mayor, Moe Carson, is re-elected. When Lem's oldest daughter Helen Barbara is on her way to her date with Lester Jr., aka "Les", she accidentally bumps into her ex-boyfriend Jimmy Hanagan, who is just back from marketing studies at college. At work, Jimmy comes up with the idea of telling the consumers that the puddings are full of Vitamin