I mean, the first 'Back to the Future' is kind of a perfect script, I think, in terms of handling time travel the best. It depends on your definition. To me, that means it effectively uses it in the story.
I start with actors that I know personally or I know their work, and there are things about their work or their presence or their own personality that make a character, that exaggerates some qualities and suppresses other qualities. It's always a real collaboration for me.
The Earth reminded us of a Christmas tree ornament hanging in the blackness of space. As we got farther and farther away it diminished in size. Finally it shrank to the size of a marble, the most beautiful marble you can imagine.