ABT principal dancer Isabella Boylston, who does the dancing body double work for the star in the new movie Red Sparrow, says the adjustment from stage to screen wasn’t big – it was small: “When I performed in the Met in front of 4,000 people, everything had to translate to the back row, so you had to do things really big, dance big, with acting and gestures. Everything has to be magnified to carry through the theater, and for film it’s the opposite; everything has to be subtle because you can read every little detail.”