Summer Time Machine Blues (サマー タイム マシン ブルース, Samâ Taimu Mashin Burūsu) is a 2005 Japanese film directed by Katsuyuki Motohiro and written by Makoto Ueda, based on Ueda's 2001 play of the same name. The film stars Eita as a member of a university science-fiction club, and Juri Ueno and Yoko Maki as part of the neighboring photography club.