“Tomorrowland,” a futuristic fantasy movie starring George Clooney, dominated a slow weekend box office, taking in $41.7 million from its debut in the United States and Canada, the Los Angeles Times reports. “Pitch Perfect 2,” which continued its extraordinary box office run by grossing $38.5 million, took the No. 2 spot, beating out a pair of big-budget movies: “Mad Max: Fury Road” and Marvel’s “Avengers: Age of Ultron.”