With his new pic “End of Watch” set to open Friday, Frank Grillo is in final negotiations to join the cast of Millennium Entertainment’s “Homefront.”Jason Statham and James Franco also star, with Gary Fleder helming. Pic revolves around an ex-DEA agent (Statham) who moves his family to a seemingly quiet town that turns out to be rife with violence, drug traffickers and a meth magnate (Franco). Grillo would play one of the meth magnate’s henchmen. Sylvester Stallone penned the script, and Kevin King and Avi Lerner are producing. CAA- and Management 360-repped Grillo has been busy over the past year, finishing production on several films including Warner’s “Gangster Squad,” Sony’s “Zero Dark Thirty,” the indie “Intersection” and LD Entertainment’s “Disconnect,” which recently preemed at Toronto.