This was the first movie I ever saw, and it was extremely traumatic...
I saw it in the theatre in the '60s when I was 3 or 4. When the mother was shot, I went into a massive crying fit, as did most of the young kids in the theatre. I was miserable for hours afterwards. My mother was pretty angry with me because I wouldn't stop whining. Eventually she slapped me a couple of times and sent me to bed, vowing never to take me to a movie again - and she didn't.
I couldn't figure out why anyone would find a movie like that entertaining.
The next movie I saw was Live and Let Die in 1973. It was a much better movie, way less traumatic.