Blair and her baby boy Arthur slide on by at a farmers market in L.A. Plus: Sandra Bullock & Melissa McCarthy, the Hemsworths, Rihanna, Justin Theroux and more

TIGHT-KNIT

Chris Hemsworth's clan hugs it out as the Aussie hunk keeps wife Elsa Pataky close – and 13-month-old daughter India closer – in Malibu, Calif., on Sunday.