"Man About Town" is the biggest DTV movie of 2007. I can see why it deserved that fate.
The plot: Jack Giamoro (Affleck) is a smarmy talent agent who has a successful life and a beautiful wife (Romijn). He realizes that his wife is cheating on him with his top client (Adam Goldberg). This sets him off emotionally and he starts a journal and it contains all his dark secrets. Unfortunately, it gets stolen in a robbery and he needs it back desperately.
The first 40 minutes are excellent. Affleck and Romijn are great and they have some strong chemistry. Then it falls apart....fast. The journal class\robbery subplot just doesn't work. If they cut that out and focused on the infidelity it would have been a stronger movie. I think this went straight to video because of its wildly uneven tone. It's not really a comedy, it's more of a drama. The climax, while entertaining, is predictable and feels rushed. The supporting cast is good however, with John Cleese standing out as Jack's teacher.
Overall, "Man About Town" is worth seeing for the first 40 minutes. If you like Affleck, you might enjoy it. Take a look at the trailer! (Does contain spoilers!)