Okay, how about some pageantry and chivalry and gallantry and romance and sword fights in which you can actually follow the action? How about a big-screen being used the way a big screen should be used? How about a wonderful musical score?
Not to mention the Black Knight!
What kid wouldn't love this movie? I don't know. Maybe some today wouldn't, but I loved it when I was a kid, and the kid in me still loves it.