The 27-year-old Swedish star plays CIA agent Heather Lee in the action blockbuster opposite Matt Damon and the pair, along with the rest of the cast, had to go to Sin City to film an epic car chase, reported Femalefirst.
When Vikander got in a taxi to get to the location shoot the driver had no idea she was was an Oscar-winning actress and told her if she was "lucky" she might get catch a glimpse of Damon on the Strip, which had been closed off for filming.
"This cab driver turned around and was like, 'You know, I went to the Strip, they closed it off and made this amazing action sequence for the new 'Bourne' movie.