While this may be old news, to some, I just heard an anecdote from a friend of mine who was backstage at the Oscar's transcribing press room
"Finally, a comment from “There Will Be Blood” cinematographer Robert Elswit that should give us all pause. Asked what the film used to create its “oil,” Elswit said it’s something most of us have imbibed at one time or another: “It was industrial material used by McDonald’s to thicken their milkshakes, and I’m not kidding. That’s actually true.”
There's a whole ocean of milkshake under my feet! No one can get at it except for me!