Perry cozies up to her ex during a day at the beach in Miami. Plus: Gwen Stefani, Kate Hudson, Winona Ryder and more

BEAM THEM UP

It's a mother-and-son reunion! Winona Ryder is positively beaming with costar Zachary Quinto at the Los Angeles premiere of Star Trek. The actress plays the mom of Quinto's Mr. Spock in the long-awaited J.J. Abrams-directed sci-fi flick, which hits theaters May 8.