Discuss using examples from gangster films with which Warner Bros. has been asso

Discuss using examples from gangster films with which Warner Bros. has been associated during and after the studio system era.
Films to include in essay:
– The Departed (2006)
– The Public Enemy (1931)
– Goodfellas (1990)
Some References:
– Thomajan, Dale (1996) ‘Poetry without a poet: Warner Bros. pre-code’, in Film Comment, volume 32, issue. 2, March / April, 70, 70-3
– Gledhill, Christine (2007) ‘The Gangster Film’, in The Cinema Book, 3rd edition, ed. by Cook, Pam and Bernink, Mieke, London: BFI, 279-2865
– Maltby, Richard (2003) ‘The Public Enemy’, in Senses of Cinema, December, Issue 29,
– Kuhn, Annette (1999) ‘Warner Bros’ in The Cinema Book, 3rd edition, ed. by Cook, Pam and Bernink, Mieke, London: BFI, 26-30
– Black, Gregory D. (1989) ‘Hollywood Censored: The Production Code Administration and the Hollywood Film Industry,1930-1940’, in Film History,Vol. 3, No. 3,167-189