The following video shows behind the scenes what it takes to make some of the Hot Toys 1/6th scale figures. Here JC Hong, president of Hot Toys Production Korea shows off the intricate work his crew does and just how the process works. He talks about how Avengers: Age of Ultron came out in May 2015 but they got to work on the figures a full year prior to that.
He also talks about the reaction to the figures by the stars themselves like Sylvester Stallone and Tom Hiddleston.
The video is in Korean but subtitled in English.