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Several factors other than pure entertainment value contributed to the popularity of 'An Inconvenient Truth". One of these factors was the identity of the narrator: a former presidential candidate who is a memorable and controversial topic in and of himself. Another factor is the widespread knowledge about global warming that already exists in popular culture. So in order for a film about the plight of global fisheries reach a sizable audience, we would have to have similar assets on our side: both a well-known figure (or several figures) presenting the message and educational campaigns to raise awareness about the problem that are separate from promotion of the film itself. However, with the proper approach, film and media could be powerful tools in the fight to save the fish.
References
An inconvenient truth. (2007). Retrieved 11/9/2007, 2007, from http://boxofficemojo.com/movies/?id=inconvenienttruth.htm
Koeppel, P. (2007). The marketing of an inconvenient truth. Ezine, 11/9/2007.
Wray, L., & Flanagan, C. (2006). An inconvenient truth about youth. Electronic version. Washington Post, pp. A17. Retrieved 11/9/2007.