Les Bons Vivants (High Lifers) also known as Un grand seigneur or How to Keep the Red Lamp Burning is a French comedy film from 1965, directed by Gilles Grangier and Georges Lautner, that was written by Albert Simonin and Michel Audiard.

It stars Bernard Blier, Mireille Darc, Andréa Parisy, Bernadette Lafont, and Louis de Funès.

Walking home late one night from the private athletic club where the leading citizens of a little town keep fit., the bachelor Léon sees a plain-clothes policeman harassing Héloïse, a homeless young woman.

He is due to host the annual dinner of the club, so Héloïse recruits Sophie, a fellow worker, to cook and serve.

At Christmas, Leon gives Héloïse a special present he has found - a red lantern to hang over the front door.