Perhaps you only know Jay Baruchel from his starring roles in How to Train Your Dragon or Man Seeking Woman. Perhaps you only know him from his supporting roles in Apatow joints like This Is the End or Knocked Up. But what you might not know about Baruchel is that he is a purveyor and creator of grindhouse-leaning horror cinema, a wholly Canadian combination of John Carpenter and David Cronenberg. His latest film in that mold, which he directed, co-wrote, and co-stars in, is called Random Acts of Violence. Though the red-band trailer hints at a …