"Guardians of the Galaxy," Walt Disney Co's offbeat space adventure featuring extraterrestrial misfits and a talking raccoon, made $94 million in ticket sales this weekend, setting a record for an August film opening. The film's strong beginning, however, isn't likely to jumpstart a lackluster summer box office season. The 3D movie, which stars lesser-known characters in Disney's Marvel comic book universe, added $66.4 million from international markets, for a global debut of $160.4 million, Disney said on Sunday. "Guardians" outgunned last weekend's leader, the science-fiction thriller "Lucy" that collected another $18.3 million in sales at domestic theaters, according to estimates from Rentrak. "Lucy" stars Scarlett Johansson as a woman with a super-powered brain. "Get On Up," a biography of the soul singer James Brown, was third with $14 million in its first weekend in theaters. "Guardians" stars