>> underneath the lights, you could see this snowflake-like crop circle appearing out of nowhere in seconds. it is probably one of the most controversial aspects of the entire crop circle phenomenon that we have. >> this is the proof believers have been waiting for. or is it? later that day, the videographer takes the video to the barge inn. it's a hot spot for crop circle enthusiasts. >> it's very rare that when it actually you can capture something on film. >> this footage was incredibly important, because nobody had ever managed to film the formation appearing before or never in a way that was absolutely clear. >> but who is this researcher? and is his imagery genuine? matt williams also saw the oliver's castle video that night at the barge. his assessment? it's a fake. and he has a theory on how it