American Cousins (2003)

Two American mafiosi, Gino and Settimo, take refuge in the Glasgow cafe owned by their Scottish/Italian cousin. But cousin Roberto isn't the tough guy they'd expected. His strengths are fish frying and stamp collecting, and he thinks Magnum 45s are a type of ice cream. Gino and Settimo try to repay Roberto's hospitality by chasing off a debt collector who wants his property, but their strong arm tactics alarm him and he realises they aren't the PR consultants they claimed to be