American Repertory Theater’s “Finding Neverland” — helmed by ART artistic director Diane Paulus — is heading to Broadway, kicking off performances in March. That’s the word from Rick Miramontez, a rep for movie mogul Harvey Weinstein, who’s producing the musical. “Finding Neverland” follows earlier ART productions of “Pippin,” “The Glass Menagerie,” “All the Way,” and “The Gershwins’ Porgy and Bess,” which went from Cambridge to New York. Featuring Broadway star and former “Smash” actor Jeremy Jordan as J.M. Barrie, “Finding Neverland” is based on the 2004 film of the same name, which starred Johnny Depp as Peter Pan’s creator. The movie was adapted from the play “The Man Who Was Peter Pan” by Allan Knee. Miramontez said Wednesday afternoon that he couldn’t confirm that the cast for the Broadway production will remain the same. He added that he was about to hop on a plane to Boston so that he could see “Finding Neverland” open on Wednesday night.