DreamWorks and Paramount will get a head start on building international awareness for its holiday musical “Dreamgirls” by showing a 20-minute segment of the film at the Cannes Film Festival on May 19.

Aside from the footage, the studios will bring headliners Jamie Foxx and Beyonce Knowles to the Martinez Hotel on the Croisette to spearhead the event. Also on hand will be writer/director Bill Condon, producer Laurence Mark, and co-stars Anika Noni (the Tony-winner from “Carolina Or Change”) and Jennifer Hudson, the former “American Idol” contestant.

Together with Knowles, they play the Dreams, a ’60s group in a musical that is a thinly veiled telling of the story of Diana Ross and the Supremes.

“Dreamgirls,” which opens Dec. 21, becomes the third film to make a Cannes splash. Paramount will also show footage from “World Trade Center,” the Oliver Stone-directed drama that opens Aug. 11, one month before the five year anniversary of 9/11. Footage from the Irwin Winkler-directed “Home of the Brave” will also be unspooled.

Aside from the footage and stars, “Dreamgirls” will also stage behind-the-scenes demos from the film by below the liners that include the film’s costume designer, production designer, choreographer and cinematographer. Also on hand will be composer Henry Krieger, who’ll offer a DVD demo of original and new songs he wrote for the film.

The studios okayed the Cannes launch late Thursday after viewing footage from a film that completed production only two weeks ago.