"They broke up over the holidays and have ended their engagement," someone close to the former couple told the magazine. "They're both really sad about this. Even their friends are surprised; they seemed really happy. Everyone just wants the best for both of them."
The pair announced their engagement in November 2007 after two years of dating.
Hewitt is best known for her roles on TV's "The Ghost Whisperer" and "Party of Five." McCall has had roles in the HBO miniseries "Band of Brothers" and now stars in the USA drama "Crash," inspired by the acclaimed movie of the same name.