Martino's Summer.

The story takes place in the summer of 1980 in Brindisi, Italy. Martino is a young man whose father isn't giving him enough attention. His older brother and his friends, including Silvia, a young northern Italian who spends her holidays in the south of the country and has a romance with Martino. Young people tend to enter an American military base north, and Martino ends up finding a US military officer, Captain Clark, a good friend who teaches him how to surf.