Harris and son Gideon enjoy a fun day out in Brentwood, Calif. Plus: Jen & Justin, Camila McConaughey, Taylor Swift and more
Credit: Ash Knotek/Snappers/Zuma
Published: Monday May 13, 2013 | 07:00 PM EDT
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Sienna Miller celebrates her first Mother's Day on London's British Academy Television Awards red carpet on Sunday.
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