He didn't like the way he was portrayed on film -- and he wants Hollywood to know it...

The real-life victim at the center of the Michael Bay produced film "Pain and Gain" is suing the director and star Mark Wahlberg over his character's portrayal in the film.

Marc Schiller was kidnapped and nearly murdered in 1994 by a trio of bodybuilders from the "Sun Gym Gang"...and now says he was falsely portrayed as sleazy and unlikable.

Schiller's lawsuit claims he was unfairly portrayed as "a deplorable, unlikable, sleazy, rude, abrasive, womanizing braggart."

The lawsuit seeks million of dollars in unspecified damages.

(Photo: Frederick M. Brown / 2013 Getty Images)