Most of them were lean when they started out. So some blame it on the oily food on the sets, the lack of physical exercise and the stress of coordinating with assistants and artists.

Do you have to be a certain weight to dance?

There is no weight requirement for dancers, but they do need a balanced musculature. "The physical requirements emphasise tone and the flexibility and mobility of certain joints, not weight."

What are choreographers responsible for?

As a choreographer, you'll create and plan routines for performance, usually to music or to evoke an idea in the heads of the audience. You'll create dance routines to entertain at live shows, events or for TV and films.