Please don't ask me to believe it, though...

Rating: 7/10 (11 March 2011)

Liam Neeson is Dr Martin Harris, arriving in Berlin for some scientific thingie with hot wife January Jones. On returning to the airport to collect his forgotten briefcase, his taxi is in an accident. He wakes in hospital four days later with partial memory loss only to find, when he returns to his hotel, that Mrs Harris doesn't know him and there is another Mr Harris who, it appears, is the real one. The rest of the movie is devoted to him trying to prove who he is (with the assistance of illegal immigrant taxi driver Diane Kruger and ex-Stasi private detective Bruno Ganz), escaping various attempts to murder him, and discovering the truth (and the consequences of that discovery).
This paranoia action thriller potters along reasonably well, and the reveal towards the end does explain the puzzles generated in the set-up. The problem is that there are still about a million unanswered questions of the "Yes, but if that's the case, then why didn't they...?" Variety. The whole thing is vastly improbable, and the improbability is not helped by the fact that the film is incredibly po-faced - it takes itself far too seriously.
To some extent this is inevitable given that much of it rests on the broad back of a similar persona to the one Neeson set up in Taken (a much better film), but I can't help feeling that if the film had romped, and revelled in its romping, then it would have been a better film, for the lack of credibility would have mattered less.