Friday will mark a nostalgic anniversary. It was 75 years ago, on June 6, 1933, that the world's first drive-in movie theater opened in Camden, New Jersey. By 1950, there were 4,000 of these movies under the stars across the country. Only a couple hundred survive.

At the drive-in, instead of wedging into a theater next to talkative strangers, crying babies, and large people blocking your view, you watched a movie in the comfort of your car, side by side with hundreds of other cars in a sprawling parking lot. You could bring your cranky baby along without disrupting anyone. Teenagers adored the romantic privacy of a dark automobile, to the point that some media referred to drive-ins as passion pits.

Hanging In, Hanging Out, and Hanging On at the Drive-In

The movies themselves mostly ranged from family fare to second-rate monster, space, and action thrillers. The sound that squawked out of the little speaker that you attached to your car window was tinny at best. But the drive-in's concession stand did offer a full and fattening menu of fried food, sodas and candy -- and of course, popcorn.

Hanging In, Hanging Out, and Hanging On at the Drive-In

The spread of daylight saving time, under which the sun sets well past 9 p.m. in summertime, cut into drive-in attendance. The advent of color television and video rentals kept people home as well. When some drive-in owners sought to boost revenue by showing risqué movies, neighbors and parents and police drove them out of business. Other owners sold out to housing and shopping-center developers.

Hanging In, Hanging Out, and Hanging On at the Drive-In

Many U.S. cities have tried to recapture the romance of outdoor movies by showing films in parks and pedestrian malls. But patrons sit on blankets, not in their '54 Chevys.