Keira Knightley is an award winning actress whose willingness to constantly challenge herself is one of the traits that makes her such a special actress and helps attain the status of elite thespians. In the movie "Begin Again", a comedy/drama/musical, she plays the role of "Greta" a young singer-songwriter new to Manhattan and in the film she has to sing which for her is a totally foreign concept as that is not a talent she feels that she possesses.
She discussed the experience of making the film at the Tribeca Film Festival in New York and she admitted to feeling scared and terrified when she entered the studio and realized that she had no idea how to sing. However, she earned the admiration of her co-star, music superstar Adam Levine who felt she did a great job and would definitely select her as a performer whom he would want to work with on his talent show "The Voice".
The fact that she chose to take on a part that was "out of her comfort zone" speaks volumes about the willingness of Keira Knightley to challenge herself as an actress and is one of the many reasons why filmmakers are constantly fighting to have her in their projects. They know that she is constantly looking to grow as an actress and to become great one must become accustomed to being uncomfortable and this is Keira Knightley throughout her career even beginning with "Bend It Like Beckham" in which she played a soccer star.
The Oscar nominated actress is constantly looking to improve and expand her acting range despite being considered one of the top actresses in the film industry and this is shown in "Begin Again" and is why Keira Knightley is one of the most desired acting commodities in Hollywood and Europe.