Sam Rockwell delivered a decade of memorable, off-the-wall performances in independent films like “Box of Moonlight” (1996) and “Lawn Dogs” (1997) before a supporting role as an unrepentant killer in “The Green Mile” (2000) brought him before mainstream audiences. When he starred as game show host-turned-CIA agent Chuck Barris in the fantastical biopic “Confessions of a Dangerous Mind” (2002), he confirmed his successful crossover from indie film mainstay to valuable Hollywood asset. He ambulated easily between both worlds in years to come; co-starring with Nicholas Cage in “Matchstick Men”