Every movie needs to set up its "rules" early on, so that it doesn't turn a direction later on that makes us stop believing in what's going on. Saving Silverman pretty early tells us to forgive any breach in logic short of what the characters want. It's a smart thing because for the course of the picture, the need to suspend your disbelief keeps going up. It's a comedy, so that's forgivable to an extent, but at the same time, this doesn't do much for the audience identifying with the characters. This is a story of friendship and love, supposedly, and all along the characters are behaving with little resembling those emotions.

There are some good gags, but I look for more than that in a comedy. If you like Amanda Peet, you will like the film, but let me direct you to The Whole Nine Yards first.