Not a bad film, not really. How much you engage with it depends on what you think of the characters. Personally, I didn't like them. They are either hipster/pixie girl screen stereotypes or bores; add to that a selection of lines that no one in their right mind would come out with. Pity, both Carrell and Knightley are very good. There's also an air of inevitability, not just in that end of the world bit, more in the glaring inevitability that this will devolve into any other relationship film only with an unusual framing device. Funny, intriguing and chaotic when it wants to be, if only it was a little more brave.