A scientist discovers a formula that makes a baseball which is repelled by wood. He promptly sets out to exploit his discovery.

Francis, now 17, is still in love with Moondoggy. She can persuade her parents to allow them a journey to Rome, together with two of her and two of his friends. However they have to take an adult with them, so they choose Peter's eccentric aunt. In Rome they get the beautiful guide Daniela, who's fascinating the guys and making especially Gidget jealous. She starts looking elsewhere herself.

My Foolish Heart is an Academy Award-nominated 1949 film which tells the story of a woman's reflections on the bad turns her life has taken. It was directed by Mark Robson and stars Dana Andrews and Susan Hayward. Adapted from J. D. Salinger's 1948 short story "Uncle Wiggily in Connecticut," it remains the only authorized film adaptation of Salinger's work; the filmmakers' infidelity to his story famously precluded any possibility of film versions of other Salinger works, including The Catcher in the Rye.

1955 film by Alfred Hitchcock

Advertising man Roger Thornhill is mistaken for a spy, triggering a deadly cross-country chase.