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.
In Dreams... well, I was slightly overcompensating with that. I was a bit like a director for hire, so maybe I was putting too much imagery that was familiar to me into it.
The great thing about films is that you have access to this whole world of experts who teach you the skills your character's supposed to have.

