There are plenty of stunts, but no actual laughs in Johnny Knoxville’s ‘Action Point’

Johnny Knoxville is a performer known for celebrating stunts, pratfalls and naughty high jinks, especially when they’re supremely silly and not particularly skillful. His latest starring role is in “Action Point,” which is essentially “Wet Hot American Summer” meets “Adventureland” by way of Knoxville’s…