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 is obvious that putting the Arab-Israeli dispute on a resolution track would be an important element of overcoming the confidence problem in the region.”
“Performing with anthrax in the building is not nearly as difficult as performing in a home where you might get stabbed at night.”