There's a good article out there that I couldn't retrieve within 20 seconds of searching, that points out that Loose Change was made to be a mockumentary, but A

There's a good article out there that I couldn't retrieve within 20 seconds of searching, that points out that Loose Change was made to be a mockumentary, but Avery got approached by Alex Jones or some other conspiracy theory nut job and edited it to be about 911 (was more generic before if my memory serves) and then started talking like it was all true. But this was just a piece to make Avery famous. It doesn't even try to provide any truth.