WATERTOWN (CBS) – Mark Wahlberg was spotted by adoring fans in Watertown late Monday night.

The Dorchester native was filming another scene for his upcoming movie “Patriots Day” about the Boston Marathon bombings.

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Fans waited outside a gas station on Main Street for him and it paid off. He posed for photos with them and stopped to talk to several people just after midnight.

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He even gave the “peace” sign to WBZ-TV’s photographer as he left in an SUV.

Mark Wahlberg leaves a gas station in Watertown, May 10, 2016. (WBZ-TV)

Mark Wahlberg leaves a gas station in Watertown, May 10, 2016. (WBZ-TV)

Wahlberg stars in the movie as Boston Police Sgt. Tommy Saunders, a composite character based on several people involved in the response to the bombings. John Goodman, Kevin Bacon and J.K. Simmons also play major characters in the movie.

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“Patriots Day” is being produced by WBZ’s sister company CBS Films. It is set for a Dec. 21 release in Boston, New York, and Los Angeles, before a wider release on Jan. 13, 2017.