I think it's called Marquis.
http://french.imdb.com/Title?0097839It's a weird french production with puppets. Roland Topor who wrote the script also wrote Roman Polansky's the tenant, one one the best movie ever made.
The puppet animators were responsible of a child's serie called "telechat (CatTV in english). This was my favorite program when I was young but I was alone to like it.
I remember in Marquis the gay guardian f**ked in his ass by a lobster on the advice from marqui's dick. Very funny.