"Hey, Girl!" Tina Fey and Amy Poehler are reuniting once again on the big screen in Sisters. The trailer for Universal Pictures' new comedy debuted last night on The Tonight Show Starring Jimmy Fallon! And now, we have the full-length sneak peek just for you in all it's raucous glory. Have their ever been two siblings more deserving of each other?

Sisters is the new film from Pitch Perfect director Jason Moore. It follows 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. It soon turns into the cathartic rager that a bunch of ground-down adults really need. 

Tina Fey is playing against type as Jane Jones. Maybe she drinks a little too much, maybe she doesn't party enough. But she's always been the wild child, and she's just what Amy Poehler's Maura Ellis needs at this stage in her life. Maura is recently single, and it's going to take an extra nudge to find that perfect man. And that perfect man happens to be right next door. Played by Ike Barinholtz, the two eventually hook up in one of the trailer's craziest scenes. As they go to make out, the poor man falls right on a ballerina music box that goes somewhere it shouldn't be. The two lovers struggle to free it as one crazy party rages on in the next room.

Sisters is Amy Poehler and Tina Fey's third movie together following their 2004 smash hit Mean Girls and the 2008 outing Baby Mama. They first worked together on Saturday Night Live, where they became Weekend Update co-anchors. And they often co-host the Golden Globes, and have appeared on various other TV series and cameoed in a few movies working side-by-side to become one of the greatest female comedy pairings in history. Sisters will allow each of the women to show a distinctively different side of themselves.

Tina Fey produces the comedy alongside Jay Roach (Meet the Parents series) and John S. Lyons (Austin Powers in Goldmember), and Amy Poehler executive produces alongside Jeff Richmond and Brian Bell from a script by Paula Pell (TV's Saturday Night Live, 30 Rock). The movie will be in theaters this Christmas. If you can't wait another six months to join this party, hurry up and invite yourself in. Sisters promises to be one of the funniest movies released this winter!