Rapper Common has signed on to co-star in "Terminator Salvation: The Future Begins" says Variety.
Christian Bale and Sam Worthington have already boarded the project.
Story centers on John Connor (Bale), now in his 30s, who leads what is left of the human race in a battle against the machines. Common will play a freedom fighter and member of Connor's inner circle.
McG will direct from a script by John D. Brancato & Michael Ferris and Paul Haggis.
Common can next be seen onscreen in "Wanted," starring Angelina Jolie, Morgan Freeman and James McAvoy.
At one point Common was to play the Green Lantern in the now dead JLA movie.
