Badfellas and is about an American mob family in witness protection in France.
Official blurb: A mafia boss and his family are relocated to a sleepy town in
France under the witness protection program after snitching on the mob.
Despite the best efforts of Agent Stansfield to keep them in line, Fred
Manzoni, his wife Maggie and their children Belle and Warren can't help
but revert to old habits
and blow their cover by handling their problems the "family" way,
enabling their former mafia cronies to track them down. Chaos ensues as
old scores are settled in the unlikeliest of settings.
The reviews haven't been terribly good but don't let that put you off reading the source material, translated into English by Emily Read.