Marvel actress Scarlett Johansson has never failed to look drop-dead gorgeous in the films she has worked in. From Iron Man to Endgame, Natasha Romanoff aka, Black Widow looked breathtaking in all, and she got her exercise in by going to the gym at 6 AM.  However, when Johansson was offered Black Widow as the title film, she ditched heavy weight lifting for a gentler form of exercise. 

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