The recently popular show Lost seemed to draw quite a bit of material from Lord of the Flies. From the basic premise of the show to the presence of a mysterious beast or monster on the island, Lostre-interprets the novel to a significant extent.
The Hunger Games has many similarities to Lord of the Flies. Both feature good versus evil, survival of the fittest, kids versus kids, and violence. Within both novels, the reader sees children subjected to violence who must also come to terms with violence and killing in order to survive.
You mention current events as well as movies. To me, the current event(s) that remind me most of Lord of the Flies are things like the child soldiers that are used in African conflicts or perhaps the street gangs that are prevalent in a lot of American cities. In both cases, you have kids thrown together in situations where there is not a lot of "adult" supervision. These situations tend to end up badly, especially since there is no navy ship to come and rescue these kids from their predicament.
Every reality television show which has the contestants competing against each other is similar to Lord of the Flies. Survivor and the show Lost are obvious homages to the novel since they take place on an island and are forced to survive. Each season of Survivor plays out the same way; it’s as if it’s scripted to parallel The Lord of the Flies. At the beginning, everyone is on fairly good terms. Then they are split into two opposing groups: Ralph and Jack. On the show, someone usually emerges as the ultimate backstabber who will ‘do anything to win.’ The Lord of the Flies was an allegory of war and international politics. Survivor seems more like an allegory about lust for money and the competitive structure of Capitalism. But in each case, the themes are the same: Morality, Good/Evil and Power. If you want to call it an event, I’d broaden it and say that the culture of reality television resembles The Lord of the Flies, but even broader, the proponents of a free market capitalism based solely on competition and little to no government intervention seems like a good parallel for the boys on the island. They have no parents. They begin fairly responsibly, but soon devolve as a society because of power struggles and lack of trust. They essentially lose control of themselves and allow human emotions to corrupt their society. The analogue with economics is the corruptibility of greed and monopolization of power leads to a loss of control of the system - resulting in recession.
I think that you can find many examples of films that seem to argue the basic nature of human beings as Golding's work did. I might offer to reach back a bit and pull from one of Woody Allen's best films about human nature. The film "Crimes and Misdemeanors" was one of the best explorations about human nature, ethics, and morality that is out there. It is as philosophically profound as Golding's work. I think that part of the reason it is such a compelling film is because it takes the central question of justice and asks what happens when there is no legal structure. One of the main ideas of Golding's work is to explore the nature of good and evil and the succumbing to the latter when there is a lack of structure to guide human actions. In much the same way, Allen's film brings out the central idea that human impulses are strongly influenced by the institutional structure that punishes wrongdoing. When this is absent, the line between a crime and misdemeanor becomes very minimal. In both works, there is a very strong discussion of what constitutes "winning" and "losing." Finally, both works probe into the nature of what is "right" and how this can change in an instant when contingencies are altered.
The Hunger Games.
If you are looking for something that may provide a bit of entertainment as well as touch on some of the themes from Lord of the Flies, I would suggest you try to find a movie called Battle Royale. It is a Japanese movie that was based on a book written by Koushun Takami. The movie was released in 2000. There are some major differences between this story and Lord of the Flies, but the similaritites are evident. Something major to note is that there is no real absence of adults in this story. In fact, adults are responsible for much of the plot here. However, I still feel that these two stories are related enough to recommend viewing Battle Royale in response to your question.
Hope it helps