Star Wars in the form we know it never happens as it was largely based on The Hidden Fortress.
No Magnificent Seven films either (based on The Seven Samurai)
Yeah, the first things that came to mind:
Star Wars will be different than what we know in OTL.
Fistfull of Dollars will not exist, so Clint Eastwood's career will also be affected.
Last Man Standing Will not exist Either, or will be different from OTL.
Magnificent Seven and other films simular to that will either not exist, or come along latter.
Toshiro Mifune's Career will also be affected.
in turn, perhaps the
Zatoichi series becomes more popular?