"(Tom) really shredded himself for the part. He lost 30 pounds, he gained it back. We're on an independent movie schedule here. He didn't really have a lot of time to be doing these things," Joe Russo, one of the directors of the film told Deadline
According to The Hollywood Reporter, the move puts Cumberbatch in the mentor role that was previously occupied by Robert Downey Jr., who played Tony Stark/Iron Man in 'Spider-Man: Homecoming'
