The Prince and the Surfer (1999) DVD-RIP 720.mp4

From the DVD cover:

Two virtually identical teens, one a Prince, the other a surfer-slacker, born to completely opposite families each long for a different life. They collide through a series of madcap circumstances when the Prince accompanies his Queen mother on a U.S. diplomatic mission and decide to temporarily trade places to live out their fantasies. Hilarity ensues as the disguised boys become embroile in international intrigue and local mayhem involving a plot to undermine the Queen. Their riotous misadventures culminate in a roller-coaster of confusion, unexpected romance and fun that will leave audiences reeling with laughter long after it's come to a stop.