Rene Clair is smart and creative and was wrong when he initially wrote off sound film as "an unnatural creation". Which obviously explains why his early sound films are brilliant? That's a logical conclusion right?
A nous la Liberte (1931) definitely does some fancy things with its sound design. Surprising things. Things that sound films would stop doing for the most part, and perhaps shouldn't have, because what Clair does is so entertaining. I love this movie. Fortunately, Pat and I get to talk about it on this week's Lost in Criterion.