Based on the comic novel by Jerome K. Jerome, Three Men in a Boat has been made into a film three times, 1933, 1956 and 1975.
This is the 1956 version, which is probably the best known of the three. It's certainly the only one currently avaialable on DVD.
Escaping their dull weekday pursuits, a trio of idiots go on a two-week holiday, taking a small rowing boat down the Thames, starting at Richmond and ending up in Oxford. They meet three young women on the shore and seem to get into just as much trouble on land as on water.
This movie is very dated and contains far too much slap-stick for my taste, which meant I ended up hoping someone would give the leading characters a good smack, and tell them to grow up.
Sadly, nobody does...