Celebrity photos of the week: Drew Barrymore's puppy pileup, Robert Downey Jr.'s award and more

Leading ladies Patricia Clarkson, Katie Holmes and Olivia Wilde shine at the Through Her Lens: The Tribeca Chanel Women's Filmmaker Program luncheon in New York. Photo: © Getty Images
Madonna rocks out with Montreal's DJ Lunice at the after-party for her Rebel Heart Tour stop in Las Vegas. Photo: © Getty Images
Alyson Hannigan and her adorable daughter Keeva make a perfect pair at the Elizabeth Glaser Pediatric AIDS Foundation 26th Annual A Time For Heroes Family Festival. Photo: © Getty Images
'Our Brand is Crisis' co-stars Sandra Bullock and Billy Bob Thornton strike a pose at the film's premiere in Los Angeles. Photo: © Getty Images
Drew Barrymore gets some puppy love during a visit to the 'Tonight Show Starring Jimmy Fallon.' Photo: © Getty Images
Elle Macpherson gets into the Halloween spirit at Veuve Clicquot's 'A Beautiful Darkness' exhibit in London. Photo: © Getty Images
Susan Downey gets a smooch from husband Robert Downey Jr. – the newest member of California's Hall of Fame. Photo: © Getty Images
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