Complex sentence: A Blu-ray was originally set to be released in October 2007 in the U.S., and December 2007 in the U.K. to coincide with the releases of Rush Hour and Rush Hour 3 on the same format.
Split into simpler sentences: A Blu-ray was originally set to be released in October 2007 in the United States, and December 2007 in the United Kingdom. This was to coincide with the releases of "Rush Hour" & "Rush Hour 3" on the same format.