Instant chemistry

As the movie hinges on the relationship between the leads, it was absolutely essential that the Harry and Sally actors had a genuine chemistry.

Luckily, this didn’t prove to be an issue for Billy Crystal and Meg Ryan, who hit it off from the get-go.

Bill said: “Meg came in, and we didn't even read a scene, and we all knew it was her. It's just one of those indefinable things that when we started talking, we were them already, you know?”