Interestingly, in comic books Hela is illustrated with antlers often different in number and configuration from scene to scene, something the filmmakers themselves embraced. “If you look at the film, and somebody probably will, and go through and actually count the number of antlers from shot to shot, it changes,” states Morrison. “We told all of our vendors from the beginning that we needed to make sure that the antlers were effectively a character.”

Another challenge was ensuring that Blanchett’s performance remained despite the addition of the CG headdress and cowl. At one point, a re-design was instituted.

“We took the cowl back into just two states,” says Morrison. “One which had these slightly tuning fork things on the forehead and completely open eyes, and then a second one where we added the battle cowl and we had these rings that are just underneath which popped her eyes and gave you some extra contrast.”

A host of vendors delivered Hela costume and headdress VFX, including Method Studios, Framestore, Rising Sun and Trixter. “We basically had everybody working in parallel, and it really was very much a collaborative effort,” acknowledges Morrison.

“Everybody folded developments back into their own work, and we encouraged all the vendors to talk to each other directly and work out best practices.”