When 'Hunger Games' and 'Rogue One' producer Alli Shearmur succumbed to cancer this year, colleagues were stunned. Like many in Hollywood battling the disease, she hid her illness from an industry where sickness is too often equated with weakness.

When Johansson gets punched in the face, Heidi Moneymaker takes the hit. When Elizabeth Olsen crashes through a window, it's C.C. Ice who ends up with scratches. Hollywood's most unsung behind-the-scenes heroes star in a Hollywood Reporter photo portfolio.