Of what he described as his “greatest undertaking but”, he continued: “It took just a few weeks to get higher and as a director it’s not really easy since you want vitality.
“We have been out on this glacier in Finland, which made it rather a lot more durable work. However it definitely helped with the character.
“That is larger than something I’ve performed earlier than and it was like herding cats to get it performed. However, you recognize, it was enjoyable,” he advised The Mirror.
Alongside the load loss, there have been different elements that he wanted to vary about himself to actually get into character.