One thing I’ve never understood about the whole Disney/Mickey Mouse discussion is Trademark doesn't expire. If Disney can hold a trademark on Mickey Mouse, all

One thing I’ve never understood about the whole Disney/Mickey Mouse discussion is Trademark doesn't expire. If Disney can hold a trademark on Mickey Mouse, all the old movies could enter the public domain but you still wouldn’t have a right to make your own Mickey Mouse movies or t-shirts. So it seems what they are really trying to protect is Fantasia or whatever. Specific movies. Not iconic characters.