Measured by Marvel, it was a fairly simple method to use to extend the actor by about 25 centimeters to just over 180 for the role of Jane Foster's superhero alter ego.
Instead of some kind of digital magic, Portman walks around Valhall on small platforms, which have been built up and hidden in clever ways.
- As a 160-centimeter woman, I do not know if I will ever be cast as a 180-centimeter figure again.
I really enjoyed that people saw me as great, she tells the newspaper.
See the tall Nathalie Portman in the clip.