Coffee Breakfast

On Feb. 15, "The Breakfast Club" turns 30 years old. What's most important about the film, in addition to the way it encapsulates adolescence in the '80s (along with two other John Hughes films, "Sixteen Candles" and "Ferris Bueller's Day Off"), is its role in pioneering that "kids from all around the lunchroom" ensemble format. Of course, that made the cast especially important. HuffPost Entertainment spoke to casting director Jackie Burch along with costume designer Marilyn Vance and director of photography Tom Del Ruth about what went on behind the scenes when they worked with the five high schoolers from most iconic detention session of all time.

1. It got so hot on the upper level of the set that cast and crew would often fall asleep and pass out in the heat.
Since "The Breakfast Club" was shot on a closed set, it required a lot of lighting. According to Del Ruth, that meant the upstairs portion of the library (where most of the cast and crew would wait between scenes) was sometimes 95 or even 110 degrees. "They often dozed off in the heat. They'd start snoring, " Del Ruth said. "We had to have the assistant directors go wake them up in the middle of the shots. We had to hire two additional assistant directors to just work the second floor and keep the crew awake so they wouldn't snore and ruin the sound takes."

2. The title was originally going to be "The Lunch Bunch."
By the time Vance came aboard, the scripted film was called "The Breakfast Club." That wasn't always the case. "It was going to be called 'The Lunch Bunch, '" she said. "But a friend of John's from another school had a detention class called 'The Breakfast Club, ' so he decided to go with that." (Thank you, John's friend.)