Usually you talk about directors in terms of the way they choose camera lenses or a kind of light to create a certain effect. But to me the most valuable commodity for a movie to create is a feeling of life, and that's what A Hard Day's Night has in spades.
It was a wealthy family, and they heard me talk about movies, and they told me I should go into movies. That's the benefit of hanging out with rich people; they have no sense of what is or isn't possible.
I come from a background of hanging out with friends and shooting videos with them, with funny stuff coming out of the group. I guess we got the same charge jocks get out of sports.