The spoiler-bubble is officially popping on Monday, which shouldn't be a problem: The world appears to still be flocking to theaters to experience Avengers: Endgame. A week after gobbling up pretty much every record there is to gobble, the massive Marvel movie directed by Joe and Anthony Russo took in another $40 million on Friday night, eyeing a record-breaking $150-153 million sophomore weekend. (Right now, Star Wars: The Force Awakens holds the second-weekend title with $149 million.) The film also crossed the $500 million mark domestically. Worldwide...forget about it. Endgame currently sits at $1.…