When Aliens Attack (2011)

It takes a less sci-fi approach in contrast to the Independence_Day_(film) scenario.
http://channel.nationalgeographic.com/channel/videos/alien-attack

http://newswatch.nationalgeographic.com/2011/08/19/when-aliens-attack-would-et-eat-us-enslave-us-or-exterminate-us-for-the-good-of-the-galaxy

http://www.imdb.com/title/tt1943870

http://scienceblogs.com/principles/2011/05/23/when-aliens-attack

http://www.imdb.com/title/tt1933522

There is still plenty of time to buy toilet paper.
http://weeklyworldnews.com/aliens/26535/alien-spaceships-to-attack-earth-in-2013

http://multiverseextra.blogspot.ca/2009/09/south-africans-blown-away-as-aliens.html