This video juxtaposes French SF comic art from the 1970's with Star Wars storyboard drawings and other illustrations. The similarity is unmistakable.
The question is whether the similarity is accidental or deliberate. If the drawings are genuine and of the right vintage, then given so many 'coincidences' I'd be very doubtful that they could be accidental. On the other hand, I've never read about any lawsuits for plagiarism by French comic artists - and if there had been plagiarism, I can't believe they wouldn't have sued for a share of the profits. Does anyone know more about this?