well every cinema probably uses jpeg2000 (dcp) and the new interoperable master format is using it as well (though it also supports more mainstream codecs)
dont see hollywood moving away from it pretty soon.
problem is jpeg2k just is too heavy to compute.
Speaking of JPEG2000, anyone knows how long until its core patents expire? And Motion JPEG2000 ?
The core part of j2k was always royalty-free, actually.