'Guardians 3': Why Karen Gillan Had Couples Therapy Wearing Nebula's Face Makeup (Exclusive)

Karen Gillan chats with ET at the New York City premiere of 'Guardians of the Galaxy Vol. 3.' The actress explains how she ended up attending virtual couples therapy with her husband, Nick Kocher, while wearing Nebula's makeup prosthetics. Karen also reflects on the MCU cast's final adventure together, assuring the fans that there's plenty of 'ridiculous' moments throughout the 'emotional' farewell on screen. 'Guardians of the Galaxy Vol. 3' flies into theaters May 5.