We’re rolling out a new blog series offering a behind-the-scenes peek at little-known factoids, anecdotes, and morsels of trivia gathered from the film sets of upcoming releases. In our first edition, we meddle in the making of Lynn Shelton’s Your Sister’s Sister, a stirring love story infused with charm and humor, complemented by largely improvised performances from Mark Duplass, Emily Blunt, and Rosemaire DeWitt. Your Sister’s Sister screened in the Spotlight category at the 2012 Sundance Film Festival and opens in theaters Friday, June 15.