Star Wars.
I was awestruck as a boy and that feeling is still there whenever I watch it. It’s only every 10 - 15 years these days, but it still feels like 1977 every time.
For the record, I’ve never seen any version other than the 1977 version so I don’t have the visual or emotional conflict that some members may have. The film - the adventure - has remained clean for me all these years.