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 <i>Collateral Beauty</i>. The film, which tells the story of a man dealing with depression, co-stars Will Smith, Keira Knightley and Helen Mirren. <p>Photo: © Getty Images</p>
Ben Affleck was more Puppyman than Batman during a visit to the >i>Tonight Show Starring Jimmy Fallon</i>. <p>Photo: © Getty Images</p>
Tina Fey caught up with the original "Mean Girls" - Cinderella's wicked stepmother and stepsisters - at Disney's Magic Kingdom in Florida. <p>Photo: © Getty Images</p>
Canadian actress Tatiana Maslany refused to give up comfort for style when she arrived heels-in-hand to a taping of <i>The Late Show with Stephen Colbert</i> in New York. <p>Photo: © Getty Images</p>
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. <p>Photo: © Getty Images</p>
With six kids at home, Brad Pitt had no trouble keeping his onscreen baby calm while filming <i>Five Seconds of Silence</i> in London. <p>Photo: © Getty Images</p>
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. <p>Photo: © Getty Images</p>
Style mavens Zendaya (L) and Kerry Washington showed everyone at the premiere of <i>Confirmation</i> how to earn a spot on the top of the best-dressed list in Rani Zakhem and Dolce & Gabbana, respectively. <p>Photo: © Getty Images</p>
Miley Cyrus, sporting her sparkly engagement ring from Liam Hemsworth, kicked back at the New York Knicks game with her big sister Brandi. <p>Photo: © Getty Images</p>
Melissa McCarthy and her husband Ben Falcone cracked each other up at the premiere of <i>The Boss</i> in Los Angeles. Ben directed the flick, which stars his wife and actress Kristen Bell. <p>Photo: © Getty Images</p>
Mom-to-be (for the second time!) Emily Blunt kept a tight hold on her <i>The Huntsman: Winter's War</i> co-star Chris Hemsworth at the movie's owl-filled premiere in London. <p>Photo: © Getty Images</p>
Model Christy Turlington had help from some top dogs on the set of her latest fashion campaign. <p>Photo: © Getty Images</p>
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