The Facebook saga is to be turned into a Hollywood film after a best-selling author is to write an account of the site's story.

The author is Ben Mezrich who wrote "Bringing Down the House" about a group of MIT students that developed a system to win at blackjack, a book that inspired the recent movie "21".

"My next book is about the kids who founded Facebook", Mezrich told the Boston Herald. It's due out in late 2009 and screenwriter Aaron Sorkin has signed on to make the book into a movie.

Mezrich revealed the book will focus on "entrepreneurship" at Harvard and Mark Zuckerberg, who has been accused of stealing the Facebook concept from fellow students.