Other challenges included learning to do a new accent in the movie–she does a Russian accent in the film, her first non-American accent on the big screen.
The actress told ET it was only one of several challenges that came with filming Red Sparrow.
While she did admit that she was nervous before filming the sex scene, it seems to also have just been one of the challenges of the job.
In addition, she says learning how to pretend to be a ballerina was rather difficult, and she only really got some of the basics down.