Simplify the following text for a Grade 10 native English-speaking person.
Original: Bonham Carter has recently signed on to play well-known author Enid Blyton in the upcoming BBC4 TV biography film , Enid Blyton ( working title ) , showing the author 's life .
Simplified: Bonham Carter signed to play author Enid Blyton in the BBC Four television biopic , Enid .