The best cameo?
The real life Tony Stark meeting his inspired character Tony Stark in the second installment of Iron Man.
It’s Elon Musk cameo in Iron Man 2, It is my favorite cameo of all time.
For such an admirably bold entrepreneur – he invests in space rockets, electric cars, and solar panels, with a surprising degree of success – Tesla CEO Elon Musk sure swallows his line when he offers Downey a briefing on an "electric jet."