Monday

Couples Watch: Matt & Luciana, Nicky & David ...

07/30/2007 at 06:00 AM EDT

• Following the premiere of The Bourne Ultimatum, Matt Damon and his real-life leading lady, wife Luciana, celebrated at Hollywood's Palladium. The couple were joined by his mom at a reserved table inside the afterparty, a secret-agent-themed bash with a backdrop of New York's skyline and white orchids floating on every table. Damon’s BFF Ben Affleck and wife Jennifer Garner stopped by, too, and had plenty of people who wanted to say hi to them. Says an onlooker: "All eyes truly were on the Damons and Afflecks."

• Anne Heche and James Tupper, sharing Pacific Rim oysters (prepared especially for them by the chef) at Vancouver eatery WEST. A fellow diner says they looked very happy, laughing throughout their date. As for his girlfriend, Tupper recently told PEOPLE about their onscreen chemistry: "It seems like love, doesn’t it? I adore her and I love working with her."

• Cozy new couple alert? Topher Grace, getting comfy with Aussie actress Teresa Palmer on a couch at the Estate in Sag Harbor. The friends, who star together in the upcoming Kids in America, were on hand for an Inca swimwear fashion show. Later, they held hands as they went to local nightspot Pink Elephant.

Nicky Hilton and David Katzenberg

Seth Browarnik / WireImage

• British pop star Natasha Bedingfield, sharing a bucket of popcorn with (and kissing!) her real estate agent beau Matt Robinson at a London screening of Transformers. Bedingfield also made sure her man was well-fed: She gave him a few bites of popcorn by hand.

• Nicky Hilton, partying poolside with longtime boyfriend David Katzenberg during the Lucky magazine-sponsored bash for Foley + Corinna at West Hollywood's Chateau Marmont. Fashion-designer Hilton also perused the beachy day-to-night dresses and vintage-inspired oversized bags that hung on racks inside the bungalow. Also there: sister Paris Hilton, who picked out dresses and got friendly with Dixie Chicks singer Natalie Maines.

• By SHELLEY AKERS, LIZA HAMM, CHRISTINE KILPATRICK, ERICA SILVERSTEIN, JEFFREY SLONIM and JENNY SUNDEL

Friday's Caught in the Act >