Somebody ought to lay off the heavy stuff this weekend, because there doesn't seem to be a cure for the surprise hit of the summer, "The Hangover." Generally regarded by audiences and critics as the funniest movie of the year, the raunchy Vegas comedy has held the top spot at the box office for two weeks, crossing the $100 million mark in just ten days.

This weekend more comedic fare will hit your local theaters. For the fans of romantic comedies, there is "The Proposal" starring Sandra Bullock and Ryan Reynolds. There is also the Biblical buddy comedy, "Year One" with Jack Black, Michael Cera and a slew of familiar funnyman cameos. And in limited release, there's Woody Allen's latest, "Whatever Works," which stars Larry David and an almost unrecognizable Evan Rachel Wood.

Along with the smash success of Pixar's family gem, "Up" (which just exceeded $200 million at the box office) almost all of the top films in theater this week will be comedies.

This weekend's horserace is going to be a close one, but odds are good that "The Hangover" will continue to give all box office rivals a headache by finishing at #1 for one final weekend before robots in disguise transform the summer movie season.

Here's how the box office top 5 should shake out:

1. The Hangover (by a smidge!)
2. The Proposal
3. Up
4. Year One
5. The Taking of Pelham 1 2 3

The Proposal
Sandra Bullock was born in Virginia but she plays a ruthless, driven book editor originally from Canada in the film. Ryan Reynolds is actually Canadian in real life, and he plays her talented but beleaguered assistant working in NYC. As the story unfolds, Bullock's character is told that her visa has elapsed, so in a swift move of improvisation she proclaims that she and her startled assistant are actually engaged so she won't have to be sent home. However, it's not quite so simple, and together they must prove that they really are a couple, so it's off to Alaska -- perhaps the most Canadian of all U.S. states -- where they attend his Grandma's (played by an always funny Betty White) 90th birthday.

Brian Lowry of Variety echoed the opinion of many about this film: "'The Proposal' won't catch any bouquets for originality, but in terms of a bended-knee pitch for the affections of women -- including Ryan Reynolds' boyish charms, a hip granny and even a beyond-adorable puppy -- this romantic comedy pretty much pulls out all the stops." Yet other critics, like Robert Wilonsky of the Village Voice felt that the movie's tried and true storyline was just tired and spent: "You know every tinny beat and false note by heart, from the implausible setup to the sprint-to-the-airport finish." But when you think about it, they wouldn't put "sprint-to-the-airport finishes" in movies if they didn't work.

It's been awhile since a quality romantic comedy debuted in theaters, and Bullock and Reynolds do have solid chemisty together. So if you're in the mood for a fun date night, this film is a winner.

Year One
Director Harold Ramis' ("Stripes," "Groundhog Day") film features some proven funny people, and it starts off a little bit like a spoof of Mel Gibson's "Apocalypto." Then they hit the road on a trek that's a little bit like Roland Emmerich's "10,000 B.C." And ultimately it's just a little bit funny. Michael Cera demonstrates his great comedic timing, sincerity, and awkward charm, while Jack Black puts in the effort mugging and bouncing around. Those two portray a pair of outcast tribesmen who are forced to hit the road and find a new way of life. The story, of course, is deliberately kooky and not at all aligned with anything remotely historical, but there are a lot of lovely new female faces in the cast.

Though a few critics like Ronnie Scheib of Variety offer "Year One" tepid praise, writing that the movie "lacks seismic guffaws but elicits many mild smiles," others were far more critical. "Talk about a disaster of Biblical proportions," declared Joe Neumaier of the New York Daily News. "'Year One' falls flat from its genesis to its outtake-filled credits scene, never moving beyond obvious set-ups or jokes that have been as beaten to death as Abel." Frank Scheck of The Hollywood Reporter, however, disagreed with part of Neumaier's broadside, "the closing credits are accompanied by outtakes far funnier than what made it into the finished picture."

If you're a teenage boy and fan of Black or Cera you may want to give this one a look. There is also a ton of recognizable cameos (David Cross, Oliver Platt, Hank Azaria, as well as Harold Ramis) to add to the flavor. It doesn't have the most comedic oomph for the buck, but it is an amusing, random mish-mash retelling of Biblical and historical stories.

Whatever Works
This Woody Allen film stars Larry David -- essentially in the role Woody would have played if he were younger -- and is set in Woody's favorite city, New York. David plays the role of the nebbish and miserable Boris well, but truthfully his character could easily be a first cousin of the one he plays on his show, "Curb Your Enthusiasm." In a surprisingly delightful performance, Evan Rachel Wood plays a sweet little thang from the South named Melody who gets lost in the big city and stumbles upon Boris' doorstep.

Many critics lamented the musty feel of the screenplay, which was reported penned in the '70s. "Dusting off an ancient script intended for Zero Mostel three decades ago, Allen tweaks the material enough to supply David with bilious rants about the stupidity and meaninglessness of man and the universe, but not enough to bridge the modern world with dated, 'All in the Family'-style comic stereotyping," writes Scott Tobias of The Onion. Lou Lumenick of the New York Post was more succinct, quipping: "Young woman, old man, older jokes." But other critics like David D'Arcy of Screen Daily dug Larry David's spin on Allen's familiar obsessions. "'Whatever Works' transcends Allen formulas thanks to David, who is taller, balder and more foul-mouthed than the usual types Allen himself has played. Spitting out his lines, David finds a deeper nastiness here than the everyday bile of his character on the autobiographical 'Curb Your Enthusiasm.'"

The movie has some fun characters (Patricia Clarkson's Marietta is particularly great), and if you like New York City, then you'll likely get a kick out this signature Woody Allen tale. If you don't like New York City, then you probably don't like Woody Allen anyway.