1997's Men in Black was a unique entry in the alien invasion genre. Based on the Malibu Comics series, The Men in Black (by Lowell Cunningham and Sandy Carruthers), the movies embraced the quirky bureaucratic side and leaned into its humor while exploring the fun and intensity of arresting literal extraterrestrials in New York City. Of course, the best aspect of it came from the dichotomy of Agent K and Agent J, played by Tommy Lee Jones and Will Smith, respectively. But the story of how the epic finale of Men in Black was crafted had its own unique shifts thanks to its disgusting and unsettling main villain.
Source：https://www.cbr.com/men-in-black-original-ending-nearly-as-big-avengers-endgame/
