Thriller Unknown has reached number 1 at the box office, surprising analysts with a strong $21.8 million opening. The film, which stars Liam Neeson and Diane Kruger, doesn t target the mainstream audience that Gnomeo and Juliet has, but fared extremely well.

The intrigue is in the concept of the film, which depicts the story of a man who wakes up from a coma only to find his identity has been stolen.

Liam Neeson has become an unlikely action figure thanks to his ninja outing in Batman Begins, The British actor also starred in hit movies Taken and The A team . Taken was a true commercial success winning critical acclaim and making Neeson a high in demand actor.

Will Unknown prove to be more successful than Taken at the international box office?

Unknown Trailer starring Liam Neeson