Bloody Disgusting reports that the two actors are interested in roles for the prequel to Alien, written by Lost scribe Damon Lindelof and to be directed by original helmsman Ridley Scott. Of course, these aren't the first big names names rumored to be boarding a Weyland-Yutani craft in much anticipated flick: Natalie Portman, Noomi Rapace and Carey Mulligan have all been linked to the project in some capacity, while others like Gemma Arterton turned out to be nothing more than web-based fantasies.
Naturally, this is all just talk and no solid casting has been announced, but many sources believe that Twentieth Century Fox will announce the official roster soon.
Regarding Hathaway and Franco: I like the idea of both of them in the Alien prequel. Hathaway's resume is full of rom-coms and dramas. Outside of Get Smart, we haven't seen her take a shot at action movies (see what I did there?). Starring in Alien would give her the chance to diversify herself as an actress and open herself up to a new fan base. And regarding Franco? That dude can just do whatever he wants and it will be awesome. Stoner pot dealer? Check. Beat poet? Check. Hiker who cuts off his arm to live? Check. Hopefully he can add "space traveler who rips off Alien's head" to that list.
Source: Bloody Disgusting