LOS ANGELES, CA - DECEMBER 08:  Following a lightsaber training CHLA patients face off against Stormtroopers and Darth Vader. Duracell celebrates its 1 million battery donation to Children's Miracle Network Hospitals nationwide by joining forces with Lucasfilm and 'Rogue One: A Star Wars Story' to transform Children's Hospital Los Angeles into a galactic playground on Dec 8, 2016 powering imagination for those who need it most held at Childrens Hospital Of Los Angeles on December 8, 2016 in Los Angeles, California.  (Photo by Albert L. Ortega/Getty Images)
LOS ANGELES, CA - DECEMBER 08:  Following a lightsaber training CHLA patients face off against Stormtroopers and Darth Vader. Duracell celebrates its 1 million battery donation to Children's Miracle Network Hospitals nationwide by joining forces with Lucasfilm and 'Rogue One: A Star Wars Story' to transform Children's Hospital Los Angeles into a galactic playground on Dec 8, 2016 powering imagination for those who need it most held at Childrens Hospital Of Los Angeles on December 8, 2016 in Los Angeles, California.  (Photo by Albert L. Ortega/Getty Images)
LOS ANGELES, CA - DECEMBER 08:  Following a lightsaber training CHLA patients face off against Stormtroopers and Darth Vader. Duracell celebrates its 1 million battery donation to Children's Miracle Network Hospitals nationwide by joining forces with Lucasfilm and 'Rogue One: A Star Wars Story' to transform Children's Hospital Los Angeles into a galactic playground on Dec 8, 2016 powering imagination for those who need it most held at Childrens Hospital Of Los Angeles on December 8, 2016 in Los Angeles, California.  (Photo by Albert L. Ortega/Getty Images)
LOS ANGELES, CA - DECEMBER 08:  Following a lightsaber training CHLA patients face off against Stormtroopers and Darth Vader. Duracell celebrates its 1 million battery donation to Children's Miracle Network Hospitals nationwide by joining forces with Lucasfilm and 'Rogue One: A Star Wars Story' to transform Children's Hospital Los Angeles into a galactic playground on Dec 8, 2016 powering imagination for those who need it most held at Childrens Hospital Of Los Angeles on December 8, 2016 in Los Angeles, California.  (Photo by Albert L. Ortega/Getty Images)
LOS ANGELES, CA - DECEMBER 08:  Following a lightsaber training CHLA patients face off against Stormtroopers and Darth Vader. Duracell celebrates its 1 million battery donation to Children's Miracle Network Hospitals nationwide by joining forces with Lucasfilm and 'Rogue One: A Star Wars Story' to transform Children's Hospital Los Angeles into a galactic playground on Dec 8, 2016 powering imagination for those who need it most held at Childrens Hospital Of Los Angeles on December 8, 2016 in Los Angeles, California.  (Photo by Albert L. Ortega/Getty Images)