I’ve got three kids - 7, 5, & 3. I’m pretty conservative about what I show them. They rarely watch tv, and then I only show them certain movies.
But that being said, they have all seen the OT multiple times and were fine during all 3 movies. I didn’t have a problem showing them the violent stuff, just going off my own experiences when I was a kid. They didn’t seem to be bothered at all, and I’m pretty sure they didn’t even notice charred Uncle Owen and Aunt Beru (it’s a quick shot anyway).

But you know your kids better than anyone, obviously…

Also, here are some of their other favorites, just FYI:

OT (they like Jedi the best, followed by SW)
ET (my middle child’s favorite movie. Has some language which I mute out when we watch)
My Neighbor Totoro (every child should watch this. Absolute home run with my kids)
Black Stallion (another “must-see” for kids and no inappropriate content)
Kiki’s Delivery Service (not as good as Totoro, but still a really good movie)
Absent Minded Professor (my daughter was 6 when we watched this and she howled with laughter throughout the movie)
Robin Hood (1938, Errol Flynn)
Wizard of Oz