Really wanted to like this film, but have to say it was a total borefest. Far too subtly done. For me the acid test of any film is would I want to watch it again, and I could quite happily live out my years without seeing Owen Wilson's plaster-covered nose ever again. That said, the opening short film with Kiera Knightly, set in a Paris hotel room was top drawer!
By Keira Knightley, of course you mean Natalie Portman.
The reason I have watched it 3 times now is because it's subtle. I've noticed far more each time I've seen it. But each to their own.