Kate Mara Found Out She Landed 'Fantastic Four' Role on Twitter

Socially casted! Kate Mara has now realized just how lightning fast social media can be. The actress stars in the upcoming film "Fantastic Four." Rather than finding out she got the role the old school way — from her agent or manager — she found out from Twitter.

"I was sort of, like, waiting patiently," she tells Jimmy Fallon on "The Tonight Show" on Tuesday. "I thought I might find out about it the day that it all happened and no one was calling me, and so I just scrolled on my Twitter and there it was. I think the playlist or something tweeted about it, or Deadline."

Mara stared at the news in her Twitter feed and called her agents, only to have them confirm what she'd already read about herself.

"Isn't that weird?" she notes of the anticlimactic casting news with her agent. When Fallon explains to her that she is a legitimate superhero due to her role as Susan Storm/Invisible Woman, she replies, "apparently, yeah."

"Fantastic Four" opens in theaters on Friday.