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Caught in the Act!

03/16/2007 at 04:45 PM EDT

• Rachel Bilson, juggling her BlackBerry, wallet and a tray of beverages while running errands in Los Angeles. Earlier, the former O.C. star was spotted dining with – and feeding – Hayden Christensen, at neighborhood café Madame Matisse. (The two costar in the upcoming film Jumpers.) The next day, Bilson's ex, Adam Brody, had drinks with friends at new Hollywood restaurant and lounge Parc.

• The cast of Entourage, including Adrian Grenier, Kevin Connolly and Jeremy Piven, hitting the town for a guys' night out. First up: the crew attended an event for AG Jeans at the clothing line's boutique in L.A., where Grenier sweetly danced with a friend's young daughter. Later, Grenier, Connolly and costar Kevin Dillon continued the party at West Hollywood lounge Winston's. "It was like a scene out of Entourage," a clubgoer tells us. "They were huddled at the bar, sipping beers, checking out the babes and having a manly good time."

• Courteney Cox, caught up in conversation while dining on tomato-bread soup with a pal at West Hollywood Italian eatery Il Sole.

Pop Burger

Courtesy of Pop Burger

• Kristin Cavallari, throwing out the ceremonial first bowl at the grand opening of Lucky Strike Lanes at Las Vegas' Rio All-Suite Hotel & Casino. Though the Laguna Beach star rolled a gutter ball on her first try, on her second attempt – with a pink ball in hand – she knocked down eight pins. Cavallari told us her relationship with actor boyfriend Nick Zano is going well. "We're trying to stay out of the spotlight and keep things private," she said. "I will say this, though – we are very happy together."

• Jude Law and his My Blueberry Nights costar Natalie Portman, looking "cozy-flirty all night" at a wrap party Law hosted for the cast and crew at restaurant-bar Pop Burger in New York City's Meatpacking District. The bash took place in the dimly lit, private pool room in the back and the duo – who left together at 2 a.m. – sat close to one another in a banquette. Also making the scene: singer Norah Jones, who also stars in the movie.

• By JENNIFER GARCIA, KIMBERLY LANSING and JEFFREY SLONIM

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