I’m almost certain that this is the movie I’m looking for. It was something my grandmother recorded for me on direct tv when I was really little like 2007. The fight scene specifically at the end is what I remember the most. But it had to have been a dubbed version or a rerelease and I can’t find it anywhere. The animation matches perfectly to what I remember as well as the fact the dragon was beheaded in the big fight scene around castle walls. The more research I’ve done said that there was a version that was aired on direct tv around that time.