There is no widely recognized film titled Kaala Patthar released in 2021. Most references to this title pertain to the iconic 1979 Bollywood disaster drama directed by Yash Chopra. TVGuide.com However, if you are referring to the 2024 Kannada thriller Kaalapatthar
: There is a modern Bhojpuri action-drama titled Kaala Patthar featuring prominent regional stars. index of kaala patthar 2021