If that question was a turkey sandwich I would eat it with mustard and mayo.

What if Bill Gates gave Vito Acconci a million dollars to do his next film?
(For starters Ill take the most realistic approach that I can think of.)
The notice that the world would take on Gates giving Acconci a million dollars would be in direct proportion to the notice of a million dollars missing from Gates's bank account. What does that guy have now, like enough money to buy the stock market? If Bush were smart he would ask Gates to fund his war instead of us. The guy is so rich he should clone himself and will himself his own fortune. If he doesnt will himself his own fortune it would take him from now until he died to make a will. This way he just says, "I will my Scrooge McDuck sized bank account to me." Done.
(Now a different view.)
I dont know what would be considered a big budget for an experimental film but Ill just assume that one million would be real big. Remember when Green Day signed the first big corporate deal for a "punk rock" band? Green Day got called sell outs and there was a big media hub bub about it. When you look back, it was a double pay off for the band. They got a bucket of money and more free advertisement than they could wish for. They would have to make an album of just farts to not sell 10 million records. I think the same thing would happen if Gates gave Acconci a million. He would be called a sell out, shunned by his peers, the media would have him on Entertainment Tonight and Oprah the next day, he would go make his movie and the public would buy in to whatever he did.
On a side note, I never liked Green Day and I dont see why the punk rock community even responded. I think they proved that they sold out so many years ago by the type of music they make today.
(and now, a completely different view)
Vito gets the million, starts a high definition streaming web sight thats free to the public and spends the rest of his life on a floor in front of a couch smoking cigarettes listening to great records begging for someone to be inside of him. A week after the sight goes up the world has its first live in HD streaming death because you cant live on cigarettes, begging and good tunes.