Family
- brother Damian Long: Teaches film and English at Weston High School in Connecticut
- brother Christian Long: Appeared in the movie "Accepted" (2006) as the Sandwich Mascot
- mother Wendy Lesniak:
- father R James Long: Teaches at Fairfield University
Companions
- Companion Drew Barrymore: Met on the set of "He's Just Not That Into You" (2009); began dating in August 2007 and split in July 2008; began dating again in early 2009
- Companion Kaitlin Doubleday: Co-starred together in "Waiting..." (2005); no longer together
