Gareth Edwards is my hero.
Prior to that, he made the microbudgeted Monsters, which he shot himself on a prosumer camcorder, in Mexico, with a tiny crew.
He did all the visual effects himself.
This was a crazy-like-a-fox methodology that he first boldly used on a BBC historical drama called Atilla the Hun. Fortunately for all of us, he documented his post-production process on that film with a course at FXPHD.
I can’t recommend it highly enough. His approach of combining accesible, affordable tools and techniques with a progressive refinement of the entire film as a whole is masterful, and offers profound insights to filmmakers and visual effects artists of all levels.
Disclaimer: I get nothing for promoting this offer. This is me speaking to you from my heart: This is the best hundred bucks a filmmaker could ever spend.