The story of two disconnected sisters summoned home to clean out their childhood bedroom before their parents sell the family house. Looking to recapture their glory days, they throw one final high-school-style party for their classmates, which turns into the cathartic rager that a bunch of ground-down adults really need.

Now that Mac and Kelly Radner have a second baby on the way, they are ready to make the final move into adulthood, the suburbs. Just as they thought they'd reclaimed the neighborhood and were safe to sell, they learn that the new occupants next door are a sorority even more out of control than Teddy and his brothers. Now forced to turn to the one ex-neighbor with the skills to bring down the new Greeks next door, they bring in charismatic Teddy as...

Join George and friends in a dance party.

Christmas enthusiast party planners Ella and her sister, Marianne, who clash with their client, Edward, who is a not-so-jolly toy company CEO. Frivolous Ella wants to prove herself to her serious sister Marianne by taking on and planning his very important party.

Three high school seniors want to make a name for themselves, so they throw a party no one will forget.

When Sam discovers that his stag weekend not only is a mock zombie survival experience, but that his disapproving father-in-law-to-be has also been invited, he couldn't be more annoyed. But when the bachelor party arrives to find the 'zombies' are in fact a bunch of psychotic ex-soldiers, their fantasy weekend quickly starts to look like a nightmare.

New parents Mac and Kelly are living the American Dream, complete with a baby girl and a new home in the suburbs. Still, they want to believe that they are still cool, so when they discover that their new next-door neighbors are dozens of fraternity brothers-led by charismatic Teddy-they try to play along. But when the parties grow increasingly more epic, both sides begin to fend for their turf. The sabotage escalates into extreme one-upmanship, beginning...

Seth and Evan are accepting the fact that they will be going to different colleges in the fall. Now, it seems more important than ever that they go to a high school party and achieve some of their long time goals. This includes, but is not limited to, losing their virginity with the girl of their dreams by getting them wasted and being their regret hookup.

Cheech and Chong make their film debut in this riotous rock'n'roll comedy, bringing with them the same madness, lifestyles, and sketches that sold over 10 million records in the early '70s.

When the CEO tries to close her hard-partying brother's branch, he and his Chief Technical Officer must rally their co-workers and host an epic office Christmas party in an effort to impress a potential client and close a sale that will save their jobs.