$3M would just about pay off my credit card bills. 
…would find a down-on-their-luck couple and offer them the money to sleep with the wife.
…what do you mean it’s been done…
If I had the money I would buy a quaint but respectable library, with a secret room filled with books on witchcraft and demonology. Or comics. 
I’d buy a cruise ship and never set foot on land again. It’d be tricked out of diving. Might even have a submersible or two. I probably wouldn’t bother putting satellite or TV access in either.
Adios MFs
Gah! Those were the exact words I wanted to post.
Oh well.
Anyway, to answer the revised OP (unlimited resources) I think I’d build a private school (free tuition) for creative-types out in some country/forest setting.
I’d be rich^3!
I see furryman stole my idea, but aside from that…some would go to producing a new Phantom Edit and a much-needed Clone Edit. Most would go to my education, which is a bottomless money pit, and to supplementing my library. And a good amount would just be changed into toonies, so I could hand them out to all the beggars on Bloor St.
I’d buy a house here, audition every season, and fund the regional theater festival. They put on damn good shows, and then I’d be invited to all the parties.
Amen. Exactly what i was going to post.
To not have to worry about money or having a job or my career any more… Sounds like bliss.