Oh philosophy. What about movies like Being John Malkovitch, where it appears to take place in our reality, but then diverges when Malkovitch’s life comes off its our-world rails. And how’s Ocean’s 12 for a mindfuck? Julia Roberts plays the part of Danny’s wife, Tess, who then pretends to be Julia Roberts because they look so similar. It’s a world where Julia Roberts exists – our world – but isn’t the one playing Tess, they just happen to look exactly the same, and — ah, right…bubbles.