
The good thing the film did was having him in the end, when he grows as a character, to mention how he is the only one who can see the "big picture" (since he is literally the only one able to see the audience in the film itself) and this contradicts everything from the earlier half of the film, where he only can see things at their basic, pessimistic parts, thus not allowing anything to get in. (Such as life's pleasures--even the act of sex he compares to the physical motion of a sewing machine). But by the end, he does let it in, and he lets others in. Thus explains "Whatever Works."

Another point to mention is that Woody has not had the captivating cinematography as his earlier films, such as Manhattan, Radio Days, and well, forget Interiors, Another Woman and Stardust Memories, which are in a different league all together.
Whatever Works is a good film with some very funny moments--much better than some of his lesser ones, such as Anything Else or Hollywood Ending.