Didn't love this film

I think it's because Laura Linney and Paul Giamatti were just too good at being really horrible people. It was nice watching Scarlet Johannson not being a super warrior/killer again and the film was OK - but it lost the funny because at it's core were two deeply unpleasant characters.
It's also frustrating that Donna Murphy, Alicia Keys (who I didn't actually know was also an actress) and Nate Corddry had so little screen time - but that's often the way in these types of films.