夏日大作戰
"Welcome to the Space Show" made its world premiere at the 60th Berlin International Film Festival (Berlinale) in February 2010. It was screened alongside "Summer Wars" (2009) as part of the festival's Generation program. They were the two anime films out of a total of 28 screened at the festival. The film was also screened at the 57th Sydney Film Festival in June 2010 as part of the Kids Flicks program. It premiered in the United States at Otakon on July 31, 2010.