Flodder

Flodder is a 1986 Dutch comedy film written and directed by Dick Maas, and produced by First Floor Features. It is the first film in the Flodder franchise and is followed by two more films and a spin-off series. The film follows an anti-social, dysfunctional family who move to an affluent, upper-class neighbourhood as part of a social experiment which results in mayhem as the Flodder family refuses to adapt.

Synopsis from Wikipedia, CC BY-SA 4.0. Everything below written here.

Poster © the film's rights holders.