Do you think that a show can influence not only the tourists but as well as the government's perception and decisions about gambling and casinos? Or do you think the impact of a film or a show isn't enough to sway people?
Any kind of advertisement have influence on people. Since the government is run by people, advertisements like movies and films will surely affect the perceptions and decisions of the government about gambling and casinos. If the movie is sensible enough and shows positive impact of gambling and casinos on the government income, it will make the people who run the government to think and probably even move them to make laws and regulations that favors gambling.