I actually went and got *Rules of the Game* and re-watched it because it was so often cited as being an influence, and it was. It was a murder mystery, and it was upstairs/downstairs, and it was a look at the class system, so it was all of those things.
Films That Influenced Director’s Scene Commentary, Behind-the-Scene Documentary, Background Documentary. Gosford Park , . DVD: Universal Studios Home Video, .
