“Red Dawn” (1984) is one of several “What if the Russians and us went to war?” movies from the 1980s. This one stars a Brat Pack B list. It’s a guilty pleasure for many red-blooded American men of a certain age. It makes passing reference to how hard it is to fight in Afghanistan (apparently, nobody listened). Patrick Swayze and Jennifer Grey are together, three years before “Dirty Dancing.” They even have a tender scene right before she blows up a Russkie with a grenade. She also has several scenes with Charlie Sheen, two years before “Ferris Bueller’s Day Off.”