LOS ANGELES, United States (AFP) — It was a record-breaking weekend for the North American box office as “Avengers: Infinity War” steamrolled the competition with heroic takings of $250 million, industry estimates showed on Sunday. The latest Marvel big-hitter after the breakout success of “Black Panther,” “Avengers” sees a string of superheroes pitch in to save the universe from powerful purple alien Thanos (Josh Brolin). Comebacks include Robert Downey Jr as Iron Man, Benedict Cumberbatch’s […]