To say “Rocky IV” (1985) is simplistic is to say two more words than I think Dolph Lundgren’s Ivan Drago said in the entire movie. Sylvester Stallone cashes in (or sells out?) by exploiting the Cold War in what turns out to be, more or less, a 90-minute music video of workout montages, flashbacks and forgotten ’80s hits. But there’s also James Brown singing “Living in America” when Apollo Creed enters the ring to fight Drago. That scene says more about the spectacle of boxing than anything ever filmed. If this movie only exists for that one purpose, it’s enough.