Fox Searchlight is back in business with “Juno” star Ellen Page, who’s in final talks to join Brit Marling and Alexander Skarsgard in Zal Batmanglij’s thriller “The East.”Ridley and Tony Scott’s Scott Free Prods. banner is producing the pic, which was written by Marling and Batmanglij. Story concerns a private contracting firm tasked with protecting big corporations from radical environmentalists and anti-business extremists, with its agents tasked with infiltrating a mysterious anarchist org known only as the East. Marling stars as the undercover agent, who finds herself falling for the leader of the East (Skarsgard). Page will play Izzy, a member of the East who used to be Skarsgard’s lover and is now jealous of the attention he pays Marling’s character. Felicity Jones was originally attached to play Izzy but press commitments for “Like Crazy” forced her to drop out of the project, which is being produced by Michael Costigan, Jocelyn Hayes Simpson and Marling. Production starts Nov. 1. Page spent the summer shooting Woody Allen’s “Bop Decameron” with Jesse Eisenberg, Alec Baldwin and Greta Gerwig. She most recently starred in James Gunn’s “Super” and Christopher Nolan’s “Inception,” which grossed $825 million worldwide. Page is repped by WME and attorney Kevin Yorn.