This 4K restoration of the Jean-Pierre Melville film, part of the director's season at BFI Southbank, is on an extended run at the cinema. You can find all the details of the screening here.
Chicago Reader review:
Jean-Pierre Melville's existentialized gangster films are one of the glories of the French cinema, American forms played out with European self-consciousness. This 1962 effort stars Jean-Paul Belmondo as an informer on the lam, but plot pales before Melville's detailed noir imagery of dingy hotel rooms, back alleys, and subterranean passages. Melville's love for American films (he was a man of taste as well as talent) was one of the most profound influences on the New Wave generation.
Here (and above) is the trailer.