I like that the Corridor Digital guys have gone from being 2 guys making these fan videos for fun into a small business with employees, sponsoring and partnership with bigger publishers (mostly Ubisoft, but still). They've done really well for themselves.
That great mix between "proper" filmmaking (albeit with a "just let's go out and shoot that thing" vibe) and the modern craftsmanship with post-processing and vfx work shows in this video again as well.