Whenever the cast broke for a meal, Spike Lee would tell them not to throw away any aluminum soda cans so he could turn them in for recycling money.
The movie was shot in 12 days. Because the budget was so tight, there were no retakes.
In an appearance on Spike Lee (2010), Spike Lee said he couldn't come up with a name for his character. He called his maternal grandmother, and she gave him the name. Mars was actually the name of her grandfather, Lee's great-great-grandfather.
During a 2017 interview on NPR's "Fresh Air", Spike Lee said the famous "Please baby please baby please" line was not in the script. Lee forgot the lines after "Please baby" and kept repeating it. Since it played so well, he kept it in the movie.
Spike Lee reprised the role of Mars Blackmon in Nike ads for Air Jordans alongside Michael Jordan beginning with the Air Jordan III, including the famous line, "Is it the shoes?"