First director interview in a minute! Today we’re talking to Jim Archer, who’s made a new comedy called “Brian and Charles” about a kooky inventor (David Earl’s Brian) who builds a 7-foot-tall robot (Chris Hayward’s Charles) anxious to learn all it can about this world of ours. Jim discusses some of the film’s documentary inspirations, shopping for mannequin heads and how to direct an actor who’s inside a box. “Brian and Charles” is in theaters now, from Focus Features.