Julia Roberts has broken down the barriers of what was once an all-boys club. As expected, her romantic legal drama “Erin Brockovich” passed the $100 million mark at the box office Tuesday night. That’s Julia’s third $100 million film in a row, says Universal Pictures, and her eighth movie overall to reach that highpoint. She now beats Tom Cruise, who has only seven $100-million movies. Tom Hanks, though, has 10, and Harrison Ford has nine. But who’s keeping score?