Sadly, after being pushed back many times Amusement has been confirmed for a straight to dvd release. Bloody-Disgusting.com posted the following article.

No one is laughing over Picturehouse’s horror-thriller Amusement as website Defamer is reporting that the studio is dumping the film directly to DVD after delaying its theatrical release nearly half a dozen times. Our sources tell us there have been multiple reshoots and the film has been recut various times. I guess the film is beyond repair? Watch for something official soon.