protagonists attempting to overcome it, including  Prakash Mehra 's  Zanjeer  (1972),  Yash Chopra 's  Deewar  (1975),  Manmohan Desai 's  Amar Akbar Anthony  (1977), Chandra Barot's  Don  (1978) and  Vijay Anand 's  Ram Balram  (1980). In particular,  Deewar , which  Danny Boyle described as being “absolutely key to  Indian cinema ”, was