Cloudy with a Chance of Meatballs is just a hilarious movie. I've watched this movie several times, and each time I watch it, there is something new and funny that I notice.
CWACOM is about an aspiring inventor, Flint Lockwood (Bill Hader), and his attempts to live up to the legacies of the greatest inventors in history. Flint is a grown-up child whose eccentric behavior is only bested by his enthusiasm to create the greatest invention mankind has ever known.
So far, his inventions have only been notorious for ending in disaster -- either personally (the spray-on shoes he applied in class, only to find out they would not come off), or for the entire town (the ratbirds that escaped and bred at an alarming rate).
His pursuit of this legacy is stymied by Earl Deveraux (Mr. T), a local cop who has his eye on Flint, and is half-superhero; and his Father, Tim (James Caan), a Sardine Bait & Tackle shop owner who is losing faith in his son's ability to invent anything meaningful, and wants him to work in the tackle shop. Tim is a very strong character, one of the funniest, and he does it without trying (he delivers some of the funniest "lines" in the movie without uttering a word.)
For his latest invention, Flint is working on the "Flint Lockwood Diatonic Super Mutating Dynamic Food Replicator," or FLDSMDFR for short (pronounced FLI-dis-m'duh-fur). Once the FLDSMDFR works, water will go in the top, and the food of your choice will come out at the bottom. Flint just needs a little more power, and the town will no longer be stuck eating the sardines that the world recently declared to be "super gross."
Cloudy does not have a single dull moment. If you blink, you might miss one of the most hilarous parts of the movie, but there are so many of those instances that it's hard to say when that would be. It's chock-full of sight gags, wacky sound effects, stupidly great jokes & puns, and Flint Lockwood's nerdy attempts to impress weathergirl Sam Sparks (Anna Faris) with his intelligence, humor, or his claim to have an allergy in common with her.
The animation can only be described as Ren & Stimpy meets Warner Brothers, meets Muppets. You also have the hilarious Looney Tunes-esque sound effects, intentionally "lame" humor, ironic use of disaster movie cliche's (weather anchor Patrick (Al Roker) even observes that the storm is "following an unusual pattern of hitting all of the worlds major landmarks first, and then spreading across the rest of the globe,") and an awesome soundtrack by Devo's Mark Mothersbaugh to give it the 80's retro-futuristic tone. It has become one of my favorite movies of all time. It's purely entertaining from start to finish.