This means Minnie Mouse enters the public domain as well, and if some of the promotional material for the animation is included as well, could also include the red-and-yellow colour version of Mickey.
Any derivative works that lack sufficient creativity on their own also enter the public domain.
It’s an interesting question where exactly that line is.
It's probably not this far, DALL-E / GPT4 has some issues....
The claim that this looks like modern mickey mouse is wild to me.
Doing a side by side. MM doesn't have visible front teeth, his ears are smaller and fully black, the silhouette is different. But the shape of the face and features, including where the shape of the black fur decends (at the widows peak?), the eyebrows, the eyes with white, all look quite similar. To me it's much closer to a modern Mickey than the original flat black and white.
This tweet seems like a fairly lazy combination of the recent ChatGPT copyright discussion with the Disney one.