I've learned, having been on a lot of sets, the good news is that by definition you are surrounded by experts. They get fired if they're not - unlike in the theatre!
When I am asked about influences, I always say I bow down to Fred Astaire, because when you look at him dancing you never look at his extremities, do you? You look at his centre. What you never see is the hours of work that went into the routines, you just see the breathtaking spirit and freedom.
I'm very aware that when one is acting in the theater, you do become kind of animal about it. And you're reliant on instincts rather than tact a lot of the time.