Don't let the difficulty of actually achieving a shot make you think that the shot is good.
Everything becomes creative if the person doing the job is
It's art. It's commerce. It's heartbreaking and it's fun. It's a great way to live.
There's no such thing as a small part. There are just small actors.
The varying physical characteristics of the actors may also necessitate changes. Sean Connery is six feet four. Dustin Hoffman isn't.
If I don't have a script I adore, I do one I like. If I don't have one I like, I do one that has an actor I like or that presents some technical challenge.