The hip-hop star joins a cast which includes Robert Downey Jr, Zach Galifianakis, Michelle Monaghan and Jamie Foxx. Todd Phillips is signed up to direct.
Due Date follows the story of a high-strung father-to-be (Downey Jr) who is forced to ride with a college slacker (Galifianakis) to ensure that he makes the birth of his first child. Foxx will portray Downey Jr's oldest friend, who once secretly dated his wife (Monaghan). It has not been confirmed what part RZA will play.
RZA's acting credits include roles in Adam Sandler comedy Funny People and Ridley Scott's American Gangster.