Warner Bros. reached a formal agreement late Wednesday with helmer George Trumbell Miller to direct the screen adaptation of Carl Sagan’s “Contact,” which revives the ambitious extraterrestrial movie at the studio.To be produced by Lynda Obst, “Contact” has been in development for nearly a decade at WB. The project was close to production under the aegis of “Super Mario Bros.” and “City of Joy” director Roland Joffe several years ago, but lay fallow at the studio when the filmmaker dropped out. Sources said a screenplay delivered by Michael Goldenberg re-ignited WB’s interest in the project. Agency sources said they anticipate “Contact” to get a 1994 production start. Born in Scotland, the 50-year-old Miller is best known for his 1982 theatrical feature “The Man From Snowy River,” as well as 1990′s “Neverending Story II.” A WB spokesman declined comment.