We don't have friends, so we watch 'Friends' on TV.
In books, you can just wallow in dialogue, and you can just wallow in written words. In screenplays, every line has to serve the purpose of the line that's implied before it and the line that's implied after it. Maybe five lines have to do the work of fifty lines.
The folks who read my books are so passionate about each one of them that the people making my movies are more afraid of my readership than they are of me.
Arguing that God doesn't exist would be like people in the 10th century arguing that germs and microbes didn't exist because they couldn't see them.