Just saw The Invention of Lying, the new Ricky Gervais movie. It has some funny moments but it wasn't as good as I hoped.

They handle the premise in a weird way. Instead of just not being able to lie, the people in the movie must tell the whole and literal truth all the time, i.e. they can't stay silent and they can't be mistaken. It also postulates that everyone in the real world is very negative and mean, but just keeps quiet about it. This changes the whole tenor of the movie, and makes all the characters come off as more mean than truthful. And after Ricky starts to lie, it makes them all appear stupid.

The beginning of the movie, mainly scene after scene of people criticizing Ricky, are a real downer. It picks up somewhat as Ricky learns to lie, but never fully recovers. And the main plot centers around his pursuit of Jennifer Garner while never making it clear why he is interested in her, other than her looks. He's portrayed as deeper then that, but she never offers anything and comes off as shallow throughout.