Warner Bros./DC Studios’ “Superman” is keeping a red hot July box office humming with a $56.5 million opening day that includes $22.5 million from Thursday previews. Independent projections now have the first film in James Gunn’s new DC cinematic universe earning a $122 million domestic opening from 4,135 locations.

SATURDAY UPDATE: On Friday, Warner Bros/DC’s Superman added another $21.5M from 78 international box office markets. That brings the offshore flying cume to $40M through Friday.

It’s not a bird or a plane — it’s the latest “Superman” movie soaring towards the top of the box office. Warner Bros. Pictures’ “Superman” grossed an estimated $56.5 million domestically on Friday, on top of $22.