Emma to star in Cameron Crowe's romantic comedy, Deep Tiki

According to THR, it should start filming in the fall.

Cameron Crowe has settled on his next movie -- a yet-to-be titled romantic drama starring Emma Stone. Crowe's reps confirmed to The Hollywood Reporter that Sony has picked up the project, based on Crowe's original script. Scott Rudin will produce, with Crowe hoping to start shooting this fall. The hunt is now on for a leading man.

Reese Witherspoon and Ben Stiller were attached to the movie but it seems like they aren't anymore.
Here's a brief synopsis of the project from Movie Insider but it's from 2008 so some things might be different now. We'll post more infos when we get them.

Synopsis: Ben Stiller stars as a disgraced U.S. military weapons consultant who is deployed to a dormant base in Hawaii to supervise the launch of an advancedspy satellite as a response to aggression from China. Once there, he starts to discover himself and the relationships he left behind against thebackdrop of mythical island lore and cold war-esque diplomacy.

 Source: Variety