life: On the 80th anniversary of the first drive-in theater, a series of photos celebrating two abiding American obsessions: cars and movies. (J. R. Eyerman—Time &amp; Life Pictures/Getty Images)

life: On the 80th anniversary of the first drive-in theater, a series of photos celebrating two abiding American obsessions: cars and movies. (J. R. Eyerman—Time & Life Pictures/Getty Images)

life: On the 80th anniversary of the first drive-in theater, a series of photos