Hollywood was buzzing over the weekend with the arrival of the Duchess of Cambridge — formerly Kate Middleton — and Prince William. Before gracing the BAFTA Brits to Watch gala Saturday night, along with Barbra Steisand, Nicole Kidman, Tom Hanks and Jennifer Lopez, the royal couple popped up at a social media panel Friday at the Variety Venture Capital and New Media Summit at the Beverly Hills Hilton. Mark Cuban and director Paul Feig spoke. And notorious ladies’ man director Brett Ratner was so excited to have his picture taken with the Duchess, he posted a photo of the two and tweeted his own crowning caption, “The Duchess and a Jewish Prince.”