A rep for the funny big screen star told Access Hollywood on Thursday that Anna, 31, became engaged to Chris toward the end of 2008.
The loved-up couple was spotted walking hand in hand in Los Angeles earlier this week.
“We were friends for a while,” Anna told the UK’s Times newspaper in October 2008 about her relationship with Chris, 29. “We grew up in the same area, so we have a lot in common.”
The couple will co-star later this year in “Young Americans.”
Anna was previously married to Ben Indra, whom she met in 1999 on the set of slasher film “Lovers Lane.”
The couple married in 2004. They finalized their divorce four years later, in 2008.
Anna joined a number of couples who celebrated the end of 2008 with an engagement, including musical couple Zooey Deschanel and Ben Gibbard, and “Dancing With the Stars” pros Maksim Chmerkovskiy and Karina Smirnoff.
People were first to report news of Anna’s engagement.
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