This was a great capture of the film! I was thinking this might be part of a re-animated collab. It seems like everything is nowadays. It's just a great cartoon in itself. I do indeed remember this. I don't drink coffee.
You can tell he's young. I love how realistic this movie was. They manage to capture the spirit of a kid this age so well. With a movie about a giant robot, that's hard to do. I do recall the '50s setting.