When Manny Pacquiao gets rolling, he gets going. The new WBA welterweight champ might not have signed a rematch against rival Floyd Mayweather Jr., but he's starring in an upcoming Hollywood war movie.

The jack-of-all-trades boxer is set to join the cast of a planned war movie called "Freedom Fighters." It will be produced by a local company named Inspire studious in partnership with an undisclosed "major US studio."

Production is slated to begin in 2020, according to ABS CBN. Inspire Studious CEO Francis Ho said that discussions are still made about Pacquiao's co-star and promised that the movie would be a "Hollywood studio-level release."

The slated film is based on Louise Reid Spencer's memoir, the "Guerilla Wife." Spencer is a World War II survivor that lived in the Philippines during the time of the Japanese invasion.

Manny is set to join the cast of a planned war movie called "Freedom Fighters." Photo: ABS CBN/Manny Pacquiao

The story provides a look inside "Hopevale," a community that was founded by a group of Americans who chose to stay to help local rebels. The freedom militia is led by Colonel Peralta, a part that is said to be portrayed by Manny.

Pacquiao, who has become a global icon because of boxing, is currently a Philippine senator. He had a stint as a congressman in his native province. He's a singer, actor, producer, writer, and host; he's also a pastor that has thousands of followers in General Santos City.

Since the early 2000s, Manny has starred in 13 films; he's also part of Brass Knuckles, starring Quinton 'Rampage' Jackson, Michael Wright, Richard Portnow. A movie about two small-time crooks trying to make it big, the film is currently in its pre-production stage.

In his resume, Pacquiao has also produced three films, namely, "Manny Pacquiao (Featuring Dan Hill): Sometimes When We Touch, Anak ng Kumander, Pacquiao: The Movie."

He recently won the WBA superwelterweight crown against former undefeated fighter Keith Thurman on July.