Buzz News Roundup, 4/30

• According to ComingSoon, America Ferrera will star in the coming-of-age drama An Invisible Sign of My Own, which will be directed by Mad Hot Ballroom's Marilyn Agrelo.
• Paramount and Brad Pitt's production company Plan B have picked up the rights to two memoirs, Beautiful Boy and Tweak, Variety reports.
• FX has ordered a series about a rebel motorcycle gang from one of the producers of The Shield, reports Zap2it.
• Mariah Carey's album remains at the top of the charts for the second week in a row, while Ashlee Simpson is coming in at No. 4, behind Leona Lewis and the Flight of the Conchords album, writes E! Online.
• The iTunes store has added three series from BBC America to its catalog, Broadcasting & Cable reports.
• Reuters reports that there's already a book and documentary in the works about New York governor Eliot Spitzer.
• Spike TV has given the green light to its first comedy series, The Factory, an improvised show from the co-creator of Strangers with Candy, writes the Hollywood Reporter.
• Jonah Hill is in talks to provide the comic relief as Shia's sidekick in the Transformers sequel, writes ComingSoon.