Jak dostat tatínka do polepšovny (How to get dad into reform school) is a 1978 Czechoslovak family comedy film directed by Marie Poledňáková.
Anna doesn't want Vašek to follow in his father's footsteps and climb mountains as she is worried about his safety.
They travel from Prague by bicycle and sleep in tents, eventually reaching their destination, Luboš's childhood cottage.
Luboš unexpectedly receives an invitation to an international climbing meet, which means he will not be able to stay with Anna and Vašek for the entire summer, as he had originally planned.
As she is heading back to the cottage, Anna takes a shortcut which leads through the rocks Luboš and Vašek are climbing, catching them in the act.
At the end of summer, Luboš returns from the climbing meet, only to find out that Anna is expecting a second child with him.