SPACE COWBOYS (2000, USA, 130m, PG) ***½ Action, Adventure, Thriller dist. Warner Bros.; pr co. Clipsal Films / Mad Chance / Malpaso Productions / Village Roadshow Pictures / Warner Bros.; d. Clint Eastwood; w. Ken Kaufman, Howard Klausner; pr. Clint Eastwood, Andrew Lazar; ph. Jack N. Green (Technicolor | 2.35:1); m. Lennie Niehaus; ed. Joel…