HOLLYWOOD — “Wedding Crashers” helmer David Dobkin and Darren Lemke have sold their action-adventure pitch “Jack” to New Line Cinema. Neal Moritz will produce.Story concerns a farm boy who takes an unexpected journey in following his dream to become a soldier like his father. Dobkin will direct and produce the pic with Moritz’s Original Film. Lemke will pen the script. Dobkin most recently directed New Line’s “Wedding Crashers,” starring Vince Vaughn and Owen Wilson. He also directed Disney’s “Shanghai Knights,” starring Jackie Chan and Wilson, and “Clay Pigeons,” starring Vaughn and Joaquin Phoenix. Lemke is in post on the feature “Lost,” which he wrote and directed.