I saw 2 previews for this movie, and I want to see it so badly. It opened the Cannes Film Festival, so hopefully it did really well. I feel like an idiot for asking this, but how do I go about finding out when it's going to be released in theatres?

Here's the preview, let me know what you think:

[YOUTUBE]http://www.youtube.com/watch?v=9EHg0SJfYeU[/YOUTUBE]