A24 has recently released the trailer for The Iron Claw, placing the legendary pro wrestling family – the Von Erichs – back in the spotlight. The Von Erichs were one of the most prominent and popular pro wrestling families of the 1980s due largely to the charismatic Von Erich brothers – David, Kerry, Mike, and Kevin. Over the years, they mixed it up with guys like Ric Flair, Jerry Lawler, the Fabulous Freebirds, and many more. Most wrestlers who made a name for themselves by the 1990s had made an appearance in World Class Championship Wrestling, the Von Erichs' home promotion – owned and operated by their father, Fritz Von Erich.
Source：https://www.cbr.com/true-story-von-erich-family-a24-the-iron-claw/
