Hollywood stars may have taken a quick break to celebrate the Fourth of July on Wednesday, but the rest of the week they were hard at work. In NYC, Garrett Hedlund and Jennifer Hudson scrubbed up and got into character on the set of Lullaby, while Keira Knightley and Adam Levine shot a scene for Can a Song Save Your Life. Several other stars, including Elizabeth Olsen and Dakota Fanning, were also spotted in NYC, and all the way in Croatia, Naomi Watts channeled Princess Diana while filming Caught in Flight. Click through to see more stars on set!
Naomi Watts, Keira Knightley, Adam Levine, and More Stars on Set
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