Patriots Day began filming today, and Michelle Monaghan is the latest to join the cast of the pic that chronicles the events surrounding the 2013 Boston Marathon bombing. She will play Carol Saunders, the wife of Sgt. Tommy Saunders (Mark Wahlberg).

“In the aftermath of the attack, heroes appeared from every corner of Boston,” director Peter Berg said. “Michelle is a remarkable actress who knows the people of this city and understands their courage and strength.”

The pic also features John Goodman, J.K. Simmons, Jimmy O. Yang, Vince Curatola and James Colby. Bridge of Spies Oscar nominee Matt Charman penned the script. Scott Stuber, Wahlberg, Hutch Parker, Dylan Clark, Stephen Levinson, Dorothy Aufiero and Michael Radutzky are producing. CBS Films is handling production and advertising for the film, which Lionsgate will open December 21.

3 months
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Monaghan stars alongside Aaron Paul in the new Hulu series The Path and earned a Golden Globe nom for her role in HBO’s True Detective. Her recent film credits include Pixels, The Best of Me and Gone Baby Gone. She next stars with Jamie Foxx in the crime thriller Sleepless Night. She is repped by ICM Partners, Circle of Confusion and Sloane Offer.