Good old Liam Neeson with an interesting-but-ultimately-missed-opportunity plot.

Rating: 6/10 (27 May 2016)

REVIEW CONTAINS minor SPOILERS
The movie is about an American professor called Dr Martin Harris (Liam Neeson) who goes to Germany with his wife for some important conference talk about agriculture and corn. While he is checking into the hotel, he suddenly realises he forgot his brief case and passport at the airport. He quickly rushes out the door and flags down a taxi. While on the way to the airport, the taxi crashes into a river. He is knocked out but the (I think the character's French) female taxi driver called Gina (Diane Kruger) saves him. When Martin Harris wakes up in a German hospital, he finds that another man has taken his identity. Even his wife doesn't recognise him. With the help of Gina and one of her old Nazi contacts, they slowly uncover the truth. To tell you more would be to spoil the movie, but let's just say you rethink what small part of the movie you saw before the car crash, and - minor spoilers incoming - unnecessarily. This bothered me after I saw the movie, I really would have liked to see lies or very specific things that are only noticeable on a second viewing in the first scene. But you don't need to watch the movie twice to realise that there was nothing hidden in the first scene, because the plot simply didn't allow it. For me that was the biggest let-down with this movie. All the trickery took place after you knew there was trickery going on. This made the movie have less replay value than a movie like Inception or especially Memento. For me at least, I went into this movie thinking it was going to be one thing but it delivered only half that, and the other half fell into another category. What I'm saying there is not that Unknown was a half hearted movie, but it was only half in the category of what I expected it would be fully in.
Liam Neeson performed about as well as in Non-Stop, which is typical Liam Neeson. The real stand out performance was by Diane Kruger who played Gina. I hadn't really noticed Diane in any other movies but in Unknown she really did a good job.
In conclusion, this is basically your typical Liam Neeson movie with really good supporting cast. I personally liked Non-Stop (awesome movie) better but this movie did have it's own charms too.
Would recommend if you're a Liam Neeson fan or someone who has watched too many Christopher Nolan movies and wants to be disappointed with the plot.