My relatively unpopular local theater has two sold out showings later tonight, which I've rarely seen. Anyone who wasn't already aware of it all seem to be checking it out after the Golden Globes.
You should check out his earlier film "Guy and Madeline on a Park Bench". Much closer to La La Land in style than it is to Whiplash. La La Land is basically the movie he would have made then if he had the budget/reputation that he does now.
He also wrote The Grand Piano which is a really great thiller.
http://www.imdb.com/title/tt2039345/?ref_=nm_flmg_wr_4