I see the crop circle forming as well as two white objects circling around as the crop circle forms.
I do not know what these objects are.
The entire crop circle seems to form all at once, not forming as a sequence of parts of the formation.
Assuming that the film wasn't somehow hoaxed, I would say that this is the best evidence presented so far that suggests that at least one crop circle may possibly be of non-human origin.
However, I also keep in mind that amazing things can be done with video editing (just turn on your TV or visit your local movie theater to witness this).
As I am not an expert in video production or editing, I can not say either way whether the video is of a real event, or just a clever video hoax.
Do you think this video is authentic, or do you believe it to be a hoax?
A great post at any rate!