Also Read: Charlize Theron Is a 'Very Hard to Kill' Warrior in Action Film 'The Old Guard' Trailer (Video)Theron, who is back to the sinewy power we saw in “Mad Max: Fury Road” and “Atomic Blonde,” plays Andromache of Scythia, but you can call her Andy. Two or three centuries ago (don’t ask her age!), she figured out that she could never be killed, that every injury would heal.