In order to prove his fatherhood potential to his pregnant girlfriend, Frank 'kidnaps' her 12-year-old nephew and tags along on his best friend Casper's debauched weekend canoe trip.
Arthouse lovers should be aware that this is The Hangover and Role Models with subtitles, playing with taboos and scatology, yet surprisingly sentimental too.
Aside from its standout scenes Klown is underpowered, content to coast on the easy chemistry between its leads.
There are some very immature and incorrect laughs as Frank and Casper journey upriver into their own awful heart of darkness in a ridiculous canoe.
Denmark’s charmless answer to The Hangover crosses the line between gross-out and just plain gross.
General release. Check local listings for show times.