A SOUND OF THUNDER is scheduled for release on September 2. Here's a link to the official site:

www.asoundofthunder.com/

Coincidentally, I just watched the "Ray Bradbury Theater" episode of "A Sound of Thunder" last night. It's one of the very best of the series. The only thing that hurts it is the fairly weak T-Rex, but even that isn't bad for pre-CGI dinosaurs. I'll be very surprised if the Hyams movie is as good as that 22 minute episode. (And for the record, I am a Hyams fan...I even liked THE MUSKETEER.)