From LOTRCastaway:

Just thought to pass on that some Regal theaters here are already offering FOTR tickets. Since I am going to the AMC theater, I called them and they said they had no idea how Regal could do it as New Line dictates when they can start selling tickets. AMC said they hope to know something early next week. Is Regal pulling a fast one, I know they and New Line were having some disagreements? Just thought I would pass this on.