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HOLLYWOOD -- One measure that you've made it in the big, bad world of show business requires getting one's hands dirty -- really dirty.

"Gravity" star Sandra Bullock was up for the challenge Wednesday in Hollywood, where she participated in a hand-and-footprint ceremony like many other stars before her.

Bullock made her mark at the TCL Chinese Theatre while famous friends Octavia Spencer and Chelsea Handler looked on.

Wednesdayalso marked another special occasion for the Oscar winner, who is mom to toddler son Louis: the passing of an anti-paparazzi bill in California that aims to protect to the children of celebrities.

"It was passed! ... That is amazing!" Bullock gushed to Entertainment Tonight. "(Before) we (were) fair game, do whatever you want to us, it (was) almost like child slave labor, it shouldn't be photographed and sold. Let them be kids, don't let them live in fear. If they turn 18 and want to be an actor, they've dug their own grave on that one. (Bill proponents Halle Berry and Jennifer Garner) went out and fought hard for it, and we're grateful."

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By Arienne Thompson, USA Today