Well I think that it is definitely real. Why would NASA have spent so much money in order to fake a moon landing?
And people who say that "theres no wind on the moon so how can the flag be moving?" Well, the flag was crumpled in storage, so when they unfolded it, it was creased and gave the illusion that it was moving.
Lastly, there has been more than 1 moon landing, around 9. I don't know why NASA would fake the first one and then go onto faking 9 more, if they did, surely the Soviets would have caught on.