"Anna Kendrick and Bill Hader have enjoyed a budding relationship for more than a year, a source tells PEOPLE. "Anna has been dating Bill quietly for over a year," says the source. "They met years ago. She's hosted Saturday Night Live and they've done a movie together, but they got together well after the movie." "They are both very private people, and with the pandemic it was easy to keep it quiet," adds the source. "They're both hysterical so they must keep each other laughing all of the time. She's really, really happy." The Oscar-nominated Pitch Perfect actress, 36, and Hader, 43, costarred in the 2019 Disney+ Christmas movie Noelle together. PEOPLE confirmed in July 2020 that Hader and former girlfriend Rachel Bilson amicably broke up six months after making their relationship public at the Golden Globes."