Stick with the book
For those who read the book and want to see this movie, don't. The movie cannot come close to the humor and cleverness that the book portrays. It is a sorry excuse for an adaptation and rushes everything. Also, Scarlett Johansson's narrating, awful. Felt like she was reading off a list, not acting.
If you did not read the book, you may like the film. However, character relationships are rushed and the acting is sub par (everyone but Laura Linney that is who did fabulous)