The film Boom marked the debut of actress Katrina Kaif and what a hot debut that was. Hot cleavages, katrina hot scene with Amitabh and Gulshan Grover; what not ! The 2003 film was a super flop in the box office despite of its great star cast. It stars Amitabh Bachchan, Jackie Shroff, Gulshan Grover, Padma Lakshmi, Madhu Sapre, Katrina Kaif and Zeenat Aman. The film was directed by Kaizad Gustad and produced by Jackie Shroff's wife, Ayesha Shroff.