Friends with Benefits (2011). D/W: Will Gluck. Story by Keith Merryman, David A. Newman & Harley Peyton. DP: Michael Grady. (Starring: Justin Timberlake/Mila Kunis/Patricia Clarkson/Richard Jenkins/Jenna Elfman/Woody Harrelson/Shaun White/Emma Stone/Andy Samberg. Like January’s No Strings Attached, this summer’s Friend’s With Benefits attempts to delve into the modern worlds of sex and friendship. And, if you…