For sheer, head-exploding hubris and pride, everyone knows that nothing in the industry rivals the first day of going to work on a Michael Bay film. (Though, to be fair, the thrilling last day of going to work on a Michael Bay film is never far behind.) And bless their hearts, Wal-Mart of all places underwrote an unprecedented first-hand peek of the magic behind the myth in this video from the set. With his custom "Bay-os" ("a/k/a Chaos!") Nikes all but winged and greased to better aid his propulsive shooting style, the iconic fauxteur brings it all down to Earth with an admonition to have fun, be safe and "make a lot of kids' dreams around the world." No Shia sightings here, alas; look for the eventual follow-up from Day 65, this time co-sponsored by Blue Cross and Johnson & Johnson CelebriSplints™ — your pinkie-saving partners in the greater LA area and beyond. [YouTube via /Film ]