”Rent” may seem like the most maudlin of guilty pleasures, on par with “Seasons in the Sun.” But, one of very few late-80s nostalgia vehicles, “Rent” hits the mark more often than, say, “St Elmo’s Fire.” Nothing evokes the 80s better than a musical about addiction, death, sex, mediocre art and moving Westward. Casual references to hard drugs and the sex trade in this otherwise sweet clip, shocking now, were true to the time: