Needs a Director's Cut...

Rating: 7/10 (21 March 2014)

Good, but had the potential to be brilliant. Great central plot: sort of Ground Hog Day meets Charlie Kaufman (esp Being John Malkovich and Eternal Sunshine of the Spotless Mind) meets Philip K Dick (esp Minority Report) meets Christopher Nolan (esp Memento and Inception).
However, the clever central plot isn't enough to make a decent-length film out of, so there are some detours and padding (eg a romantic angle), and this detracts from the film. Then, just when I thought the movie had redeemed itself for all the padding by having a picture- perfect ending, that wasn't the ending. There is a final twist after the ending-that-should-have-been, and this is totally unnecessary.
Duncan Jones (David Bowie's son) shows that Moon was no one-off: he is a director with a great future. He just needs more control over his movies - the tacked-on ending smacks of corporate interference.
Great performance by Jake Gyllenhaal, and I am generally not a fan (though Donnie Darko and Jarhead were great). Good support from Michelle Monaghan and Vera Farmiga.
If ever a movie needed a Director's Cut, this is it.