Cool is an understatement. I saw this completely unaware of anything about it and thought that surely this was a sequence from a mega-budget studio movie.
I looked up their website, http://www.405themovie.com ..
Here's some of what they say:
"All of the post production and visual effects were done after working at our day jobs in the late night hours and on weekends."
It's astonishing to an old filmmaker like me ( and I mean making films using actual film ) to see what can be done today on mini-budgets on week-ends and nights.
Anyone who has not seen this -- it's a MUST see.