Yahoo! just premiered the trailer for Jaume Collet-Serra’s (House of Wax) thriller Unknown (formerly Unknown White Male). The latest Dark Castle entry centers on a doctor (Liam Neeson) who, when visiting Berlin with his wife (January Jones), gets into a car accident that leaves him in a coma; he then awakens to find out that someone has taken his place, leading him on a frantic quest to discover the truth. Diane Kruger and Frank Langella Also star. According to the site the thriller now arrives in theaters February 18.