Zac Efron and other stars turned up for Hollywood premiere of The Hangover

Actress Jamie-Lynn Sigler (L) and actor Jerry Ferrara arrive at the Los Angeles premiere of the film "The Hangover" at the Grauman's Chinese theatre in Hollywood, California, June 2, 2009.　[Agencies]

Actress Jamie-Lynn Sigler (L) and actor Jerry Ferrara arrive at the Los Angeles premiere of the film "The Hangover" at the Grauman's Chinese theatre in Hollywood, California, June 2, 2009.　[Agencies]