Michelle Monaghan and Susan Sarandon will star in thriller “Still of Night” with Jonathan Mostow directing from his own script and Exclusive Media financing and producing.Sarandon is in final talks. Mostow and Steve Alexander will also produce. Monaghan will portray an aspiring career woman with everything falling into place until her sister, who has a tainted past, disappears. She soon finds herself tangled in a dangerous conspiracy and must outwit a devious criminal (Sarandon) to save herself and her sister. Alex Walton, Exclusive Media’s president of international sales and distribution, is launching “Still of Night” to buyers at Cannes. CAA is representing North American rights. Production will start in August. Exclusive Media’s Matt Jackson will oversee production. Monaghan starred in “Source Code” and will be seen in “Penthouse North,” “Tomorrow You’re Gone” and “Better Living Through Chemistry.” Sarandon will be seen next in Exclusive Media’s “Snitch,” Warner’s “Cloud Atlas” and Robert Redford’s “The Company You Keep.” Mostow most recently directed sci-fi thriller “Surrogates” and just produced “Playing the Field,” set for a Christmas release through FilmDistrict. He also wrote the story for “House at the End of the Street,” due out in September through Relativity Media. Exclusive Media made the announcement Friday, a day after disclosing that it has teamed with Cross Creek Pictures to launch a three-year deal to co-finance, co-produce and co-develop at least two film per year with budgets up to $65 million. First project from the new partnership is the long-in-development thriller “A Walk Among the Tombstones,” starring Liam Neeson and directed by Scott Frank.