Efron keeps his cool while stepping out solo in Beverly Hills. Plus: Shots from Comic-Con, Jennifer Garner, Ben Affleck, Vanessa Hudgens and more

'X' FACTOR

Mulder and Scully are back! Former X-Files costars Gillian Anderson and David Duchovny reunite to celebrate their hit sci-fi drama's 20th anniversary at Comic-Con in San Diego, Calif., on Thursday.