Judd Apatow plans 'Knocked Up' semi-sequel; Elijah Wood may make 'Hobbit' cameo

Bite-sized pieces of movie news to start your weekend:

Judd Apatow's next movie will feature characters from his biggest hit, "Knocked Up," but it's not exactly a sequel. The film, tentatively set for summer 2012, will focus on Pete (Paul Rudd) and Debbie (Leslie Mann, Apatow's real-life wife); there's no word yet on whether Seth Rogen or Katherine Heigl would reprise their roles. [Variety]

Speaking of reprising roles: Elijah Wood will play Frodo Baggins once again in "The Hobbit." He'll be featured at the beginning of the two movies in a sort of framing device, reading from his relative Bilbo's account of his "There and Back Again" adventure. [TheOneRing.net]

The "Clash of the Titans" sequel "Wrath of the Titans" has added to its cast. Edgar Ramirez ("Carlos") will play the god Ares, and Toby Kebbell ("The Sorceror's Apprentice") in in talks to play Agenor. Additionally, Hayley Atwell ("The Prisoner," "Captain America") and Clemence Poesy ("Harry Potter and the Deathly Hallows") are among the actresses being considered for the part of Andromeda. [The Wrap]

Eminem is on the verge of starring in his first film since "8 Mile." It's called "Random Acts of Violence," and he would play an ex-con whose buddies are trying to lure him back to his old life, while the FBI wants him to wear a wire and help take his old gang down. His company Shady Films would produce the project. [Vulture]