Star Spangled Rhythm is a 1942 American all-star cast musical film made by Paramount Pictures during World War II as a morale booster. Many of the Hollywood studios produced such films during the war, generally musicals, frequently with flimsy storylines, and with the specific intent of entertaining the troops overseas and civilians back home and to encourage fundraising – as well as to show the studios' patriotism.
Pop Webster is a former silent movie star once known as "Bronco Billy" who now works as the guard on the main gate at Paramount Pictures. However, he's told his son Johnny, who's in the Navy, that he's the studio's Executive Vice President in Charge of Production. When Johnny shows up in Hollywood on shore leave, Pop and the studio's switchboard operator, Johnny's sweetheart Polly Judson, go all-out to maintain the illusion for Johnny and his sailor friends that Pop's a studio big-wig. Pop offers to put on a variety show for the Navy, featuring all of Paramount's stars, but obviously can't deliver. Polly saves the day by convincing Bob Hope and Bing Crosby to do the show, and they convince the rest of the stars on the lot. - Wikipedia
[1 hr 39 min]