was left red-faced during his 51st birthday party when his alleged supermodel girlfriend snubbed his advances for a kiss. The 16 Blocks
star celebrated the special occasion, at New York's trendy G2 lounge on Saturday night, with rumoured lover Petra Nemcova and star friends Joaquin Phoenix
, Eva Mendes
and Clive Owen
, among others.
Later in the evening, Willis was seen moving in for a birthday smooch with Petra, but the catwalk beauty - who the actor reportedly stood up at the US premiere of 'V For Vendetta
' last week - spurned his efforts. An insider told New York Post newspaper: "She shied away from his kiss and then left alone. Petra is playing it safe."