Disney loses the copyright to the Steamboat Willy version of Mickey, but they’ve been using a clip of him as a lead-in to most of their movies for several years to establish him as a trademark, so a different set of laws apply. Disney still employs an armada of lawyers more bloodthirsty than any shark. They will tie you up in lawsuits until you’re bankrupt whether they have legal grounds or not.
Pretty sure they’re making fun of the breakdancers here.