Everybody is great and the chemistry is different with everyone. That is the joy of acting - you really don't know how it is going to go until you turn up. It's like playing tennis, you can't plan for the match you are going to play until you are actually up against your opponent and what happens, happens. That is the joy of being on set.
Acting is a bit like tennis in that you can't really do it on your own.
It's like playing tennis, you play a different rally with different people. Every actor is different and the chemistry between actors is different.