Nostalgia is a powerful feeling. You have some good times in a period of your life, time goes by and you feel like going back to that time period. I am guessing someone in the late 70s felt nostalgic about late 1950s high school life in America, leading to the creation of “Grease,” one of John Travolta’s first hits. The life and time are very dated today, but every now and then you still hear the soundtrack on classic rock stations. Clearly the lyricists did their jobs right. This is not my favourite musical. It’s cutesy with catchy tunes, but my top two musicals are “The Blues Brothers” and “The Rocky Horror Picture Show.” If it involves car chases, Ray Charles, the Time Warp, Meat Loaf, and Carrie Fisher with a rocket launcher then count me in. I have less enthusiasm for Danny Zucko singing about his summer love for Sandy. But the movie was available for a dollar on iTunes during an evening when I had nothing to do in University, so I might as well kill two hours and ...