Vin Diesel Sued by Producer for 'xXx: Return of Xander Cage'

Vin Diesel stiffed the producer of the latest chapter of his 'xXx' movies ... according to a new lawsuit filed against the movie star.

George Zakk says he was hired as an executive producer for "xXx: The Return of Xander Cage" ... which was released in January 2017. Zakk says he was supposed to get an on-screen credit for his work on the film, plus a salary of $200k.

However, he says when the movie was released he got no credit, nor was he paid a dime.

Zakk had sued Vin for this before the movie came out, but the judge sent him packing ... saying the lawsuit lacked necessary details.