'Guardians of the Galaxy' to top underwhelming North America box office

The Malay Mail Online'Guardians of the Galaxy' to top underwhelming North America box officeThe Malay Mail OnlineFile picLOS ANGELES, Sept 1 — Science-fiction superhero flick "Guardians of the Galaxy" was on course to claim top spot at the North American box office this weekend as the worst summer blockbuster season in nearly a decade limps to a close.