Many star wars fans claim, usually using the expanded universe as a source, that the galactic empire and the sith was speciest, meaning, they treated the non-humans in the galaxy, the alien species (like wookies or the mon calamari), harshly, enslaving them or wiping out their species. Is this canon? Is it a part of the movies? I always thought the movies only were canon, which is what George Lucas confirmed. Is this in the story of the movies? I don't remember Palpatine, anakin, padme, or any of the jedi or rebel alliance mentioning it.