For the scene with Mike waiting inside the refrigeration truck, series creator Vince Gilligan wanted audiences to be able to see his breath so they would know how cold it was. To create that effect, the special effects crew designed a tiny plastic box with holes in it and placed dry ice inside, which Banks kept inside his mouth to create condensation when he exhaled.MacLaren, 11:00–11:30 The idea was based on a similar device film director Frank Capra previously used with his actors in one of his films, which Gilligan read about in Capra's autobiography.Gilligan, 9:25–11:00 The device worked, but had to be adjusted because it initially created an effect that looked more like cigarette smoke. Also for that scene, a bloody chunk of skin can be seen dangling from Mike's ear after he is shot. For that effect, special effects creators Greg Nicotero and Howard Berger, who are part of the company KNB Efx Group, made a mold of actor Jonathan Banks' ear and made an application for him to wear during filming. It was applied onto Banks by Breaking Bad make-up artists Corey Welk and Frieda Valenzuela.MacLaren, 11:35–12:49
