In addition to Swarup's original novel "Q &amp; A", the film was also inspired by Indian cinema. Tandan has referred to "Slumdog Millionaire" as a homage to Hindi cinema, noting that "Simon Beaufoy studied Salim–Javed's kind of cinema minutely." Boyle has cited the influence of several Bollywood films set in Mumbai. "Deewaar" (1975), which Boyle described as being "absolutely key to Indian cinema", is a crime film written by Salim-Javed based on the Bombay gangster Haji Mastan, portrayed by Bollywood superstar Amitabh Bachchan, whose autograph Jamal seeks at the beginning of "Slumdog Millionaire". Anil Kapoor noted that some scenes of the film "are like "Deewaar", the story of two brothers of whom one is completely after money while the younger one is honest and not interested in money." "Slumdog Millionaire" has a similar narrative structure to "Deewaar". "Satya" (1998), written by Saurabh Shukla (who plays Constable Srinivas in "Slumdog Millionaire"), and "Company" (2002), based on the D-Company, both offered "slick, often mesmerising portrayals of the Mumbai underworld" and displayed realistic "brutality and urban violence." Boyle has also stated that the chase in one of the opening scenes of "Slumdog Millionaire" was based on a "12-minute police chase through the crowded Dharavi slum" in "Black Friday" (2007), adapted from Hussein Zaidi's book of the same name about the 1993 Bombay bombings.