What's Up, Doc?

Barbra Streisand stars as Judy Maxwell, a charming and witty troublemaker who gets entangled with Ryan O'Neal's character, Howard Bannister, a musicologist with a tightly wound fiancée. As the two parties unknowingly swap bags with identical plaid overnight bags, a series of chaotic and wild situations ensue, leading to a series of wild chases, pranks, and misunderstandings.