When you work with a good actor, there is this natural rapport and chemistry that develops over time. That chemistry helps your characters come alive and makes the story of the film that much more convincing.
Because when you go out, and you have fun, basically you're performing for these tabloid outlets and the paparazzi. And when you perform and create this story, they're chuffed - they get excited, they capture it, and they put it out.
Humans know when it's not a good story. Unless you do this for a living, you may not know exactly why you don't like a story, but you can't fool an audience ever. They know when you have it and they know when you don't.
When I see a shipwreck, I like to know what caused the disaster...I learned nothing but the glow that wrapped her face when the soup came. That's the story.