Topic on User talk:Looney Toons
This is a permanent link to the first version of this post.
You can view later versions on the post history page.
What Rob said. Given the way copyright works currently in the US the images won't be in the public domain until near the end of the century (and with the way Congress keeps extending copyright at the behest of Disney every time Steamboat Willie gets close to entering the public domain, it might never be). And I doubt any of the images have been released under any alternative licensing.