The Desert Song is a 1929 American PreCode operetta film directed by Roy Del Ruth and starring John Boles, Louise Fazenda, and Myrna Loy. It was photographed partly in twocolor Technicolor, the first film released by Warner Bros. to be in color. Although some of the songs from the show have been omitted, the film is otherwise virtually a duplicate of the stage production and extremely faithful to it. It was based on the hit musical play with music by Sigmund Romberg and book and lyrics by Oscar Hammerstein, Otto Harbach and Frank Mandel
French General Birabeau has been sent to Morocco to root out and destroy the Riffs, a band of Arab rebels, who threaten the safety of the French outpost in the Moroccan desert. Their dashing, daredevil leader is the mysterious Red Shadow. Margot Bonvalet, a lovely, sassy French girl, is soon to be married at the fort to Birabeaus righthand man, Captain Fontaine. Birabeaus son Pierre, in reality the Red Shadow, loves Margot, but pretends to be a milksop to preserve his secret identity. Margot tells Pierre that she secretly yearns to be swept into the arms of some bold, dashing sheik, perhaps even the Red Shadow himself. Pierre, as the Red Shadow, kidnaps Margot and declares his love for her.To her surprise, Margots mysterious abductor treats her with every Western consideration. When the Red Shadow comes face to face with General Birabeau, the old man challenges the rebel leader to a duel. Of course Pierre will not kill his own father, so he refuses to fight, losing the respect of the Riffs. Azuri, the sinuous and secretive native dancing girl, might be persuaded to answer some of these riddles if only she can be persuaded by Captain Fontaine. Meanwhile, two other characters, Benny a reporter and Susan provide comic relief. Eventually, the Red Shadows identity is discovered, a deal is struck with the Riffs, and Pierre and Margot live happily ever after. ........
Source: Wikipedia