If you didn’t realize Rooney Mara and Joaquin Phoenix were a couple until they welcomed a baby together in September 2020, you’re not alone. The low-key actors don’t do social media and rarely give interviews, so their relationship is kind of a mystery even to those who knew they were an item. However, Joaquin did reveal how he and Rooney met in an October 2019 interview with Vanity Fair, and it was apparently all the way back in 2012 on the set of the 2013 movie Her, in which the two played exes.