Remember drive-in movie theaters? If you are old enough, you probably have fond memories of those precursors to football tail-gate parties, where instead of hanging out in our cars at a football stadium, we did it at the movies. For baby boomers, going to the drive-in for a double feature was a typical family outing in the summer. Growing up in the 50s and 60s, my family were big patrons of the drive-in. As soon as it was dusk, we would load up the station wagon with toys and food and head…