Look, believe whatever you want. If you want to believe it was some obscure movie that caused all this go ahead.
Going back to June 06, 2012: US Embassy in Libya comes under attack
http://www.theaustralian.com.au/news/breaking-news/us-embassy-in-libya-comes-under-attack/story-fn3dxity-1226386750563
The group was reportedly trying to gain information about its missing leader.
Interesting that documents went missing with the 9/11/12 attack.
Some of the missing papers from the consulate are said to list names of Libyans who are working with Americans, putting them potentially at risk from extremist groups, while some of the other documents are said to relate to oil contracts.
http://www.independent.co.uk/news/world/politics/revealed-inside-story-of-us-envoys-assassination-8135797.html
I'm sure the "fact" that he was queer was more important to the muzzies than those things.