Konecne si rozumíme (1977)

A fourteen-year old Pavel (Richard Medek), upon coming back from a several months medical treatment, finds out that his friend Zuzana is by a head taller than him. She goes out with their tall school-mate, whose nickname is Eiffel Tower. Pavel is very unhappy and neglect school, dreaming only about a revenge. He is lonely with his problem, because he cannot tell his parents. The only person to trust, his grandpa (Jirí Pleskot), is too busy having never-ending appointments with a different women. Grandpa is rather short, too, like Pavel, but he is only attracted by taller women, telling Pavel that a man is as big as he feels to be.