Three words is all actor Vin Diesel had to say, over and over again, for his role as Groot in the Marvel Cinematic Universe’s Guardians of the …
'MCU': Here's How Much Vin Diesel Made For Saying 'I Am Groot'
Marvel and Disney had to fork out a pretty penny for the actor, who didn’t even do any real acting for the role, and only did voice-overs.

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When Idris Elba signed on to play Heimdall in the Marvel Cinematic Universe, he probably thought it would be an amazing adventure and another boost …