09/24/2008 AT 06:00 AM EDT
, joining beau Justin Bartha
on the Las Vegas set of his new movie, The Hangover
it filmed on the roof of Caesars Palace. "She was cute, laughing and
giggling throughout," a source says. "She was wearing a headset and
listening to the whole production while Justin was shooting." Between
takes, the two interacted, and Bartha would touch her face tenderly.
According to the source, he referred to Olsen as his "girlfriend." While in
Sin City, the two stayed in a suite in the Augustus Tower at Caesars Palace,
and Olsen relaxed in the spa while Bartha continued filming.
and wife Portia de Rossi
joining a small group for a celebratory dinner on the patio of West
Hollywood's Il Sole. "They're so in love," an onlooker tells us. "Doting Ellen
was seen feeding Portia a bite of tiramisu for dessert." Nearby,
shared a girls night out with a friend,
splitting the Dover sole and bellinis.
New Hollywood lounge Bardot opened its doors to friends for a low-key evening of old school tunes spun by Ryan Gosling
a live band and burlesque show. The actor, looking dapper in black pants and
a white button-down shirt, played tunes from an elevated deejay booth while
guests enjoyed small plates of American bistro-styled food. A casual Catherine Keener
chatted with friends near her table, while Brothers & Sisters
' Emily VanCamp
sipped wine over dinner with a
pal. Gosling seemed confident with his deejay gig, and later checked out the
live band in the neighboring room. The night ended with more tunes from
Gosling, including '80s favorites like "Walk Like an Egyptian."
had the perfect dinner date while
visiting his hometown of Chicago – his mother! The actor stepped out to
Gibson's Steakhouse for a meal with his mom while in town to support the
How I Met Your Mother
's Alyson Hannigan
hubby Alexis Denisof
, sharing lunch at casual eatery Blue Plate in
Santa Monica. The two sat by the window, talking over lunch. "They kept to
themselves and were quiet," says an onlooker. After they paid, the pair
walked out holding hands and smiling and headed down trendy Montana Avenue.
By JENNIFER GARCIA, MARK GRAY, MARY MARGARET and LESLEY
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