“Wicked” has a high bar to clear to rank as a top-grossing musical, let alone score major Oscar gold: The five top-grossing Hollywood musicals have exceeded the $1-billion mark worldwide, and the next three under that, including best picture nominee “Bohemian Rhapsody,” are just below with more than $900 million each. “Wicked,” a long-in-the-making adaptation of the hit stage musical …
