Watchable, but a wind-up: the ending is pathetic.

Rating: 1/10 (20 February 2014)

That's 'wind' to rhyme with 'mind', non-UK readers. There's a whole lot of running around, and pseudo-theo/philosophical bilge, and 'will-they-won't they' romancing, only to end up with 'The Chairman' (presumably God) changing the plan to suit Matt Damon and Emily Blunt because he can.
In scriptwriting 101 that's called a 'Deus Ex Machina', from the ancient plays that ended with God descending on a stage lift to sort out all the mess that the mere mortals had got up to. You know - 'it was all a dream'. It was never a good way to end a drama in 200BC, and it's no better now.
And the trouble is that TAB, for all its paper-thin characterisation, is (fairly) engaging and watchable to start with. This is why it winds you up. Where you start to think 'shouldn't I be sorting my laundry?' is when John Slattery, the hard-ass chief of the men in hats, is replaced by Terence Stamp, the even-harder-ass chief of the men in hats. There's no dramatic logic to this - they simply replace the bad guy with a badder guy halfway through.
Also from script school you will note that the 'Magic Negro' trope was alive and well in 2011. This is the black man with amazing powers whose sole dramatic purpose is to aid the white man hero to succeed in the end. See 'The Green Mile', among others. Now if the Chairman had been James Earl Jones, well...