The 45-year-old star says though he wants all his films to do well at the box office, "Patriots Day" is little more special to him, reported Entertainment Weekly.
"When you're making a movie about something like this, it really becomes about the story, the people, and not your own individual experience. These are the ones that really matter.
The movie details the events surrounding the 2013 Boston Marathon bombing. Wahlberg plays Boston Police Sergeant Tommy Saunders, a fictional character who's a composite of officers who worked during the day of the bombing and subsequent manhunt.
The film also starring Michelle Monaghan, John Goodman, Kevin Bacon and J K Simmons, is set to hit the US theatres on December 21.