Unlike the singing, dancing heroes of the era, Amitabh Bachchan's Vijay Khanna was a brooding, honest police officer haunted by the trauma of his parents' murder.

Directed and produced by Prakash Mehra and written by the legendary duo Salim-Javed, Zanjeer broke all the traditional rules of the 1970s.

Pirated versions are often low-resolution "cam-rips" or have distorted audio, ruining the experience of a classic film.