The San Francisco Film Society announced the recipients of its FilmHouse residency program today, a center offering free office space and project development for selected filmmakers. The four lucky individuals are Grainger David, a South Carolina native whose short film, "The Chair," was nominated for the Palme d'Or at the 2012 Cannes Film Festival; Gerard McMurray and Ephraim Walker, two USC graduates who worked as associate producer and production consultant, respectively, on this year's Sundance hit, "Fruitvale Station"; and Leah Wolchok, a San Francisco-based filmmaker whose short films have screened at festivals worldwide.  The new FilmHouse Residencies begin in August and last 12 months, though the filmmakers could have chosen to stay for half that time if preferable. Made possible by support from the Kenneth Rainin Foundation and the San Francisco Film Commission, the program features guest lecturers, workshops, screenings, networking events and the free office space to...