LOS ANGELES/NEW YORK, Nov 19: Superhero sequel “Thor: The Dark World” hammered out another victory in its second weekend at US and Canadian box offices, overcoming a strong performance from Christmas-themed romantic comedy “The Best Man Holiday.” “Thor,” from Walt Disney Co’s Marvel Studios, hauled in 38.4 million dollars in ticket sales from Friday through Sunday, according to studio estimates. “Best Man Holiday” earned 30.6 million dollars to take the No. 2 spot. Senior-citizen, buddy comedy “Last Vegas” finished third with $8.9 million. (agencies)