IMDB suggests that Leifur Sigurdarson is playing the minor character of Nils Lindstrom in the Mortal Engines film.

Lindstrom is one of Captain Khora's pals and an associate of Anna Fang. He runs into some grief at the Gasbag and Gondola when the whole crew first encounter stalker Shrike.

This is Leifur Sigurdarson's first role in a movie. His agency is Kirsty Bunny Management. Wellington based, he's worked in policy roles with Government and will now have a chance to make a make on the Hollywood scene!