Rihanna and Heidi Montag celebrated the end of Summer by breaking out their bikinis and soaking up the sun. Tom Cruise spent some quality with Suri at a park in NYC and Ben Affleck debuted The Town at the Venice Film Festival, but that's not all that happened this week — click through to see all the biggest stories and best photos!
Tom and Suri Cruise, Rihanna and Heidi Montag in Bikinis, and More in This Week in Pictures!
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