For many reasons. In no way shape or form do I think (500) Days was better than Inglorious Basterds. I pretty much can't stand Tarantino and I was really impressed by that film. Even based purely on scope and ambition. C'mon man tell me you are finding a way to stick up for the last 20mins of (500) Days. That park bench scene was the most contrived set-up maybe I've ever seen in a movie...