"I was trying to act cool and I think I succeeded until now, because now he can see that I was not playing it cool at all," Dennings said of meeting the former child star

"She comes running in, she's like, 'OH MY GOD!' I'm like, 'What happened?' She's like, 'There's the most beautiful man in the rehearsal hall. I have never… I'm in love!'" Gellar recalled