Question: Between Ulli Lommel and Maurice Pialat, who has had a more diverse career?

Context paragraphs:
Le Garçu: Le Garçu is a 1995 French drama film directed by Maurice Pialat and starring Gérard Depardieu.  It was Pialat's final work.  Pialat was dissatisfied with the movie and even planned to re-edit it, but his failing health made that impossible.

Ruth Lommel: Ruth Lommel (1918–2012) was a German stage and film actress.  She was the daughter of the actor Ludwig Manfred Lommel.  Her brother Ulli Lommel also became an actor, while another brother Manuel Lommel is a cinematographer.

Loulou (film): Loulou is a 1980 French drama film directed by Maurice Pialat, starring Isabelle Huppert and Gérard Depardieu.  For "Loulou", Pialat was nominated for the Golden Palm award at the 1980 Cannes Film Festival.

1987 Cannes Film Festival: The 40th Cannes Film Festival was held from 7 to 19 May 1987.  The Palme d'Or went to the "Sous le soleil de Satan" by Maurice Pialat, a choice which was considered "highly controversial" and the prize was given under the jeers of the public.  Pialat is quoted to have retorted "You don’t like me?  Well, let me tell you that I don’t like you either!"

Maurice Pialat: Maurice Pialat (] ; 31 August 1925 – 11 January 2003) was a French film director, screenwriter and actor noted for the rigorous and unsentimental style of his films.  His work is often described as being "realist", though many film critics acknowledge that it does not fit the traditional definition of realism.

Revenge of the Stolen Stars: Revenge of the Stolen Stars is a 1985 American comedy fantasy film directed by Ulli Lommel and starring Klaus Kinski, Suzanna Love, Barry Hickey and Ulli Lommel.

Ludwig Manfred Lommel: Ludwig Manfred Lommel (1891–1962) was a German stage and film actor.  He was the father of the actress Ruth Lommel and actor Ulli Lommel.  His youngest son Manuel Lommel is a cinematographer.

The Mouth Agape: The Mouth Agape (French: La gueule ouverte ) is a 1974 French drama film directed by Maurice Pialat.  It depicts, in a cinematic realist fashion, a woman going through a terminal illness and also dealing with the tumorous lives of her husband and son.  It was one of the least commercially successful of Pialat's films.  It was the third film of the ten that he directed before his death in January 2003.  It is also known under the titles The Gaping Mouth and The Gaping Maw.

D.C. Sniper: D.C. Sniper is a 2010 American direct-to-video drama-thriller film directed by Ulli Lommel and written by Lommel and Ken Foree.  It stars Foree, Christopher Kriesa and Maria Ochoa.

Ulli Lommel: Ulli Lommel (born 21 December 1944) is a German actor and director, noted for his many collaborations with Rainer Werner Fassbinder and his association with the New German Cinema movement.  Lommel is also well known for the time which he spent at The Factory and as a creative associate of Andy Warhol, with whom he made several films and works of art.  Since 1977 he has lived and worked in the USA, where he has written, directed and starred in over 50 movies.

Supporting paragraphs: Ulli Lommel Maurice Pialat
Answer: Maurice Pialat