I have a THP file for the Soul Eater intro to replace the intro in Brawl. I placed as /movies/OPmovie.thp and it won't work. I'm using Riivolution. Did I do something wrong?

While downloading textures for some characters, few came with a .pac file that I assume is the moveset file. I placed it in the same folder as the texture and when I select the character, the game freezes and makes an annoying sound. Can someone please help me?