Forgetting Sarah Marshall was directed by Nicholas Stoller (he directed some episodes of Undeclared) and written by Jason Segel (Knocked Up and some Undeclared).
In short, another great comedy has been delivered. Forgetting Sarah Marshall, like Knocked Up and Superbad, uses situational humor that you can relate to and, thus, enjoy more than a usual comedy.
There aren’t many cheap shots in this film – that is, it’s genuine. Of course, there are over-the-top moments, but they’re very funny. Forgetting Sarah Marshall deserved the good reviews it recieved.