Hugh Jackman Serenades Amanda Seyfried in N.Y.C.

Caught in the Act

12/05/2012 at 03:30 PM EST

Hugh Jackman and Amanda Seyfried

Dave Allocca/StarTraks

Following a Sunday night screening of Les Miserables, the cast and crew dined at Porter House New York.

Hugh Jackman, Anne Hathaway, Amanda Seyfried, Eddie Redmayne, Russell Crowe and Sacha Baron Cohen were all on hand to celebrate the film.

Anna Wintour, Michael Kors, Joan Collins and Tony Danza were also there to enjoy passed items from Chef Michael Lomonaco including roasted sliced filet mignon with cabernet and shallot sauce, porcini mushroom ravioli with white truffle cream and bite-sized desserts including New York state apple pie, cream puffs and mini ice cream sandwiches.

But the most delicious part of the evening was when Jackman – accompanied by a pianist – serenaded Seyfried with "Happy Birthday" while she stood on top of the grand piano bench in the center of the dining room.

Seyfried then blew out the candles on her birthday cake to a round of applause.

– Liza Hamm

NEXT: 90210 Stars Reunite at Santa's Workshop in L.A.