Let's take a look at some of the newest posters for some of the most-anticipated upcoming films:

• The Hobbit: An Unexpected Journey has released three new posters (in addition to this recently released collection) featuring Ian McKellen, Martin Freeman, Richard Armitage and Andy Serkis as Gollum. The Hobbit: An Unexpected Journey opens December 14th.
• A new banner poster has gone up for Ruben Fleischer's Gangster Squad, which comes on the heels of these character banners. Starring Sean Penn, Josh Brolin, Ryan Gosling and Emma Stone, Gangster Squad opens January 11th, 2013.
• A new character banner poster for Richard LaGravenese's Beautiful Creatures, which doesn't match the actors' names with their characters for some reason. Starring Alice Englert, Alden Ehrenreich, Emma Thompson, Emmy Rossum, Jeremy Irons and Viola Davis,  Beautiful Creatures graces theaters on February 13th, 2013.
• The first poster for The Hangover writers Jon Lucas and Scott Moore's 21 and Over is now available.  Starring Miles Teller, Justin Chon, Skylar Astin and Jonathan Keltz, 21 and Over opens March 1st, 2013.

Hit the jump to see the new posters and synopses.

Posters courtesy of IMPA. Click to biggify.

Here’s the synopsis for The Hobbit: An Unexpected Journey:

“The Hobbit: An Unexpected Journey” follows title character Bilbo Baggins, who is swept into an epic quest to reclaim the lost Dwarf Kingdom of Erebor, which was long ago conquered by the dragon Smaug. Approached out of the blue by the wizard Gandalf the Grey, Bilbo finds himself joining a company of thirteen dwarves led by the legendary warrior Thorin Oakenshield. Their journey will take them into the Wild; through treacherous lands swarming with Goblins and Orcs, deadly Wargs and Giant Spiders, Shapeshifters and Sorcerers. Although their goal lies to the East and the wastelands of the Lonely Mountain, first they must escape the goblin tunnels, where Bilbo meets the creature that will change his life forever… Gollum. Here, alone with Gollum, on the shores of an underground lake, the unassuming Bilbo Baggins not only discovers depths of guile and courage that surprise even him, he also gains possession of Gollum’s “precious” ring that holds unexpected and useful qualities… A simple, gold ring that is tied to the fate of all Middle-earth in ways Bilbo cannot begin to know.

Here’s the synopsis for Gangster Squad:

Los Angeles, 1949. Ruthless, Brooklyn-born mob king Mickey Cohen (Sean Penn) runs the show in this town, reaping the ill-gotten gains from the drugs, the guns, the prostitutes and–if he has his way–every wire bet placed west of Chicago. And he does it all with the protection of not only his own paid goons, but also the police and the politicians who are under his control. It’s enough to intimidate even the bravest, street-hardened cop…except, perhaps, for the small, secret crew of LAPD outsiders led by Sgt. John O’Mara (Josh Brolin) and Jerry Wooters (Ryan Gosling), who come together to try to tear Cohen’s world apart. “The Gangster Squad” is a colorful retelling of events surrounding the LAPD’s efforts to take back their nascent city from one of the most dangerous mafia bosses of all time.

Here’s a synopsis for Beautiful Creatures:

A supernatural love story set in the South, “Beautiful Creatures” tells the tale of two star-crossed lovers: Ethan (Alden Ehrenreich), a young man longing to escape his small town, and Lena (Alice Englert), a mysterious new girl. Together, they uncover dark secrets about their respective families, their history and their town. Oscar(R) nominee Richard LaGravenese (“The Fisher King,””P.S. I Love You”) directs from his adaptation of the first novel in the best-selling series by Kami Garcia and Margaret Stohl. The film stars Alden Ehrenreich (“Tetro”), newcomer Alice Englert, Academy Award(R) winner Jeremy Irons (“Reversal of Fortune”) Oscar(R) nominee Viola Davis (“The Help,” “Doubt”), Emmy Rossum (TV’s “Shameless”) and Academy Award(R) winner Emma Thompson (“Howard’s End,” “Sense and Sensibility”).

Here’s the synopsis for 21 and Over:

Skylar Astin (Pitch Perfect), Miles Teller (Footloose) and Justin Chon (Twilight) star in 21 AND OVER, a hilarious movie that showcases a rite of passage gone horribly wrong. Straight-A college student Jeff Chang has always done what’s expected of him. But when his two best friends Casey and Miller surprise him with a visit for his 21st birthday, he decides to do the unexpected for a change, even though his critical medical school interview is early the next morning. What was supposed to be one beer becomes one night of chaos, over indulgence and utter debauchery in this outrageous comedy.