I think there is a different branch/version of Cinema Experience for Eden. I'm still on Dharma. It works for me and so I figure why change it?
Also, to access the Cinema Experience button, you need to first go into the movie info (by hitting "I" on the keyboard) and it should be an option there.
Here's the thread for Cinema Experience on the XBMC forum. Should have put it in my first post, but neglected to.http://forum.xbmc.org/showthread.php?tid=87563
Hope this helps.