If you haven’t seen it, the Solo movie posters were essentially plagiarized from a French designer (Hachim Bahous) who produced extremely similar covers for a series of album covers.
It’s certainly plagiarized as you can see here.
I did see another post saying that Disney has stated that the design work was done by a third party agency, and was not done in house, so I don’t blame Disney. I would be curious to know the name of the agency though.
I will say that whoever the designer was with that agency is most likely in a crap ton of trouble and my guess is that they most likely are no longer working there.
So, just remember, using other work you find as inspiration is one thing … copying is quite another.