Why is it people always seem to want to ruin a good thing when it is going well?

In the movie "You, Me and Dupree," Owen Wilson decides to separate himself from his fellow frat packers and try to see if his luck is as good as it used to be.

In the past couple of years, actors like Wilson, his brother Luke Wilson, Vince Vaughn and Will Ferrell all seemed to be in the same films together, including "Wedding Crashers" and "Old School."

This past year, each actor has decided to take on a solo project.

So far Vaughn, who released "The Break-Up" earlier this summer, succeeded at the box office — the film broke the $100 million mark — but failed to please critics.

In "Dupree," Wilson seems to suffer from the same problem, which is unlike his films of the past. The chemistry that made those films so great is nowhere to be seen in this film with Wilson and his co-star Matt Dillon.

The film begins with the wedding of Molly (Kate Hudson) and Carl Peterson (Dillon), a happy couple who can't wait for the wedding to be over and their marriage to begin.

This is also a time when Carl and his lifelong best friend Dupree (Wilson) realize they might not be seeing quite as much of each other as they previously did.

This theory doesn't last long when Carl finds Dupree jobless, homeless and spending his nights in a bar.

Carl comes up with the idea that Dupree could stay with him and Molly in their new house until Dupree can get back on his feet.

Carl passes the idea by Molly, and it seems all right at first until Dupree officially moves in. From the moment Dupree moves in, he's doing something that makes Molly and Carl increasingly uncomfortable.

Whether it be instigating a fight between two neighborhood kids or stinking up the bathroom to the point that it is unusable, Dupree does everything imaginable to make the newlyweds miserable.

There's a great scene in which Dupree organizes a "guys' night" at Carl's house that includes everything from margaritas to strippers. Then Molly comes home unexpectedly. The best part of the scene is not the look on her face, but the expression on the guys' faces as each realizes how much trouble Carl is in.

Dupree is kicked out of the house at one point after a date that leads to Carl and Molly losing their living room and patience with Dupree.

It doesn't take long before Molly invites Dupree back to the house and talks Dupree into changing his life around, but while Dupree is making a turn for the better, Carl's life is making a turn for the worse.

His father-in-law, Mr. Thompson (Michael Douglas), who is also his boss, is trying to humiliate and embarrass him by suggesting things like hyphenating his last name with Molly's maiden name and even suggesting that Carl get a vasectomy.

Carl also suspects that Dupree and Molly might be a little more than just roommates.

More potentially funny situations occur, but really this film never changes its theme or its motive, which is simply to hope that Wilson can carry this film by himself.

Wilson is great in this film from start to finish, and the film had all the potential in the world to show off his perfectly placed sarcasm and dry wit.

The only problem is there is no one else in the film who is able to help Wilson out at all. Hudson is a pretty face to look at, but she isn't Wilson's love interest in the film; she's Dillon's, so any chemistry they have really fades away rather fast.

Douglas isn't bad, but all his time is spent with Dillon — and they are more uncomfortable with each other than the audience is with them.

Dillon is this film's biggest problem. Why the filmmakers thought it would be a good idea to cast him alongside Wilson is a mystery because they never help the audience laugh, and any chemistry they could have is gone before Dupree even moves into the house.

All of these things lead to the film's biggest problem, and that is the film is really lacking consistent laughs. There are several moments in the movie when people can find themselves not laughing for quite a while, and this is a problem for any comedy.

So if Wilson plans to make any more films on his own, the first thing he should do is find someone who can make the audience laugh as much as he can. Then he should have himself a funny movie.