#JessieEisenberg is okay with one-and-done. Jesse Eisenberg's role as #MarkZuckerberg in #TheSocialNetwork, written by Aaron Sorkin and directed by David Fincher, catapulted him into stardom with his critically acclaimed performance as Facebook founder–turned–arch tech villain, but that's where his portrayal stopped. Eisenberg, like Fincher, declined to join the gang back together for the sequel. The star said he felt like "letting down America" and wanted to move "in different directions' in his life. The Oscar-winning 2010 biopic's upcoming sequel, "The Social Reckoning," will be replaced by #JeremyStrong. 📸: Getty