Kaala Patthar
Kaala Patthar () is a 1979 Indian Hindi-language action drama film produced and directed by Yash Chopra, with a screenplay written by Salim–Javed. The film was based on the Chasnala mining disaster, and is the fourth collaboration between Shashi Kapoor, Amitabh Bachchan, and director Yash Chopra, which succeeded the films Deewaar (1975), Kabhie Kabhie (1976) and Trishul (1978). Despite doing average business at the box office, the film was critically acclaimed, and received several Filmfare Award nominations. Across time it has attained cult status, and is considered a classic in Hindi cinema. Amitabh Bachchan was much appreciated for his portrayal of ex-Navy captain turned coal mine worker. Plot
Vijay Pal Singh (Amitabh Bachchan) is a disgraced Merchant Navy captain who is branded a coward, humiliated by society and disowned by his parents for abandoning his ship and risking the lives of over 300 passengers. Feeling guilty over his cowardice, he starts working as a coal miner to forget his past. He meets and becomes friends with Ravi (Shashi Kapoor), an engineer in charge of the mines. He also makes an enemy in another co-worker named Mangal (Shatrughan Sinha) who is an escaped convict working in the mines to avoid the police. Vijay's past comes to haunt him every time he tries to get some sleep. He sees Mangal causing trouble for the coal miners, Vijay tries to defend the miners against Mangal, there are a couple of fights between them and then one day Mangal is injured in an incident and Vijay carries him to Dr. Sudha's surgery and gives his own blood to save Mangal's life, they eventually become friends. The one person who supports Vijay is Dr. Sudha Sen (Raakhee Gulzar), who tries to make Vijay face up to his past and move on. Ravi and Mangal have their own romances with Anita (Parveen Babi) and Channo (Neetu Singh), respectively. Seth Dhanraj (Prem Chopra) is a greedy boss who makes life difficult for the coal miners by giving them poor equipment, less than sufficient medical supplies and lack of facilities, Vijay, Ravi, and Mangal come together to fight for justice against Dhanraj. Water floods the mines, endangering the lives of hundreds of workers trapped underground. Ravi, Vijay, and Mangal succeed in saving the miners, although Ravi injures his leg and Mangal dies. 