Celebrity photos of the week: Ben Affleck's puppy attack, Brad Pitt's baby and more

Kate Winslet was all smiles on the set of her new drama Collateral Beauty. The film, which tells the story of a man dealing with depression, co-stars Will Smith, Keira Knightley and Helen Mirren.
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Ben Affleck was more Puppyman than Batman during a visit to the >i>Tonight Show Starring Jimmy Fallon.
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Tina Fey caught up with the original "Mean Girls" - Cinderella's wicked stepmother and stepsisters - at Disney's Magic Kingdom in Florida.
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Canadian actress Tatiana Maslany refused to give up comfort for style when she arrived heels-in-hand to a taping of The Late Show with Stephen Colbert in New York.
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Kate Upton is used to having all eyes on her, but the model happily let this adorable little puppy looking for a forever-home shine at a dog adoption event in Lakeland, Florida.
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With six kids at home, Brad Pitt had no trouble keeping his onscreen baby calm while filming Five Seconds of Silence in London.
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A laid-back Jessica Alba caught up with friends and family via video chat while waiting for her luggage at New York's JFK airport.
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Style mavens Zendaya (L) and Kerry Washington showed everyone at the premiere of Confirmation how to earn a spot on the top of the best-dressed list in Rani Zakhem and Dolce & Gabbana, respectively.
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Miley Cyrus, sporting her sparkly engagement ring from Liam Hemsworth, kicked back at the New York Knicks game with her big sister Brandi.
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Melissa McCarthy and her husband Ben Falcone cracked each other up at the premiere of The Boss in Los Angeles. Ben directed the flick, which stars his wife and actress Kristen Bell.
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