At the Cinema Society opening of “Me and Orson Welles” on Monday night, the actor had to stop in the middle of an interview when another Zac walked by. Efron got flustered, halted mid-sentence and asked his publicist, “Wait … is that Zac Posen? Wow.”

After regaining his composure and apologizing to the reporter, Efron stopped once more when photographers’ flashing bulbs signaled that Amber Rose had shown up – sans Kanye West. “Amber Rose is here?” he asked incredulously.

At least the admiration was mutual. Rose nervously approached the heartthrob at the Gramercy Park Hotel’s Three ­Olives fete later in the evening and asked him to pose for photos with her. Gushed Efron yet again: “I just can’t believe she’s here.”

But the 22-year-old was a little less humble when he admitted that kissing Claire Danes, who plays his love interest in the movie, came “relatively easy.” Said Efron, with a smile, “She is a very beautiful lady.” [Source]