Had director Steve James replaced the brief shot of topless women with hundreds of men being machine-gunned to death, “Life Itself" might have gotten the PG-13 rating “The Expendables III" hilariously brandishes. To quote The Waco Kid, Sly Stallone and his band of merry old action stars “kill more men than Cecil B. DeMille," yet somehow this is more kid-friendly than bare breasts. In fact, no one in “The Expendables III" takes his shirt off, presumably because Terry Crews' obscenely massive pecs alone would almost guarantee an R.