Rap duo the Ying Yang Twins have signed up to star in their first movie.

Early next year (06), WAIT rappers D ROC and KAINE will start filming the comedy VIAGRA FALLS, in which they'll play two pals from Atlanta, Georgia, trying to raise enough cash to fund a spring break trip to Daytona Beach, Florida.

According to the Hollywood Reporter, their plans take an unexpected turn once they get their hands on a box of Viagra.