Elon Musk’s brief cameo in the 2010 Marvel film ‘Iron Man 2’ has resurfaced online, captivating fans. The scene features Musk interacting with Tony Stark and pitching an idea for an electric jet. Robert Downey Jr. has previously acknowledged Musk as an inspiration for his portrayal of the billionaire superhero. RDJ is set to return to the MCU as Doctor Doom.