“Barbie” and “Oppenheimer” had fantastic second weekends of $93 million and $46.2 million, respectively. In an alternate universe, those sophomore takes would be respectable openings. Instead, 10 days in “Barbie” domestic is at $350 million and “Oppenheimer” is $174 million. Add foreign and “Barbie” is already $774 million, well on her way to crossing $1 billion and beyond.