Sometimes I read a script and it's obvious from early on that it's one where the suspension of disbelief has to develop strongly from page one. Some are more reality-based.
You can still have chemistry on screen without getting on with the person. But it just makes your job a lot easier if you don't have to gird your loins, if that's not quite the right phrase, every time you're going to do a scene with that person.
It was no wonder that people were so horrible when they started life as children.

