"I am delighted to let you know that the lovely Dakota Johnson has agreed to be our Anastasia in the film adaptation of "Fifty Shades of Grey"," tweeted E L James as she announced the former "Ben and Kate" star will play the character of Anastasia Steele.

Dakota Johnson Image - YouTube/Celebs.com

So, here we are with five things that you must know about the charming Dakota Johnson.

1. She was only 10 when she made her big screen debut: Dakota was first seen on the big screen in the 1999 flick, "Crazy in Alabama." She and Stella Banderas, her half-sister, played Griffith's daughters in the film.

2. She has celeb parents: The Austin, Texas born actress is the daughter of Don Johnson and Melanie Griffith. It seems that the Johnson House is filled with talent and fame.

3. She was the star of a popular sitcom: Apart from movies, Dakota also starred in comedy "Ben and Kate." The show went off air in January when Fox cancelled the show. It was her first role as a star in a television series.

4. She can model like a pro: Dakota is also a professional model. In 2006, she signed with IMG and appeared in a Mango Jeans 2009 spring/summer campaign. She got interested in modelling when she was 12 and did a Teen Vogue shoot with other celebrity children as told to Aspen Peak magazine. She was quite clear from the beginning that she wants to become an actress, adding, "Everyone has that thing that sparks some sort of emotion in them. Acting does that for me. It's about learning and storytelling. I don't know where I'm going to be tomorrow or in a week. I don't know what's going to happen, and I'm not rushing anywhere. I know I'll be working with IMG, continuing acting classes, and in a year maybe go to the American Academy of Dramatic Arts to study more. But I know I'm going to be an actress," as told to Aspen Peak magazine in an interview.

5. She did a bed scene with Justin Timberlake: She shared the bed with Timberlake in the film, "Social Network." Timberlake played the character of Sean Parker.