Yesterday I posted a video looking at the influence of Akira Kurosawa on Star Wars. Well, Michael Heilemann has posted an amazing feature-length exploration of Star Wars and the films that influenced it.
It's not Heilemann talking about anything...it's a sort of meta-Star Wars comprised of dozens of elements from other films that influenced Lucas in making it. For instance, here's the opening crawl from Forbidden Planet (1956):
Heilemann also includes a crawl from a 1936 Flash Gordan serial. For more, check out Kitbashed, particularly the extensive ebook on Star Wars sources.