Quite many rockstars have been inspired by his steps, from Elvis onwards.
The footage is from 1941 film "You'll Never Get Rich", directed by Sidney Lanfield. Music: Led Zeppelin's "Rock 'n' Roll" on their cult album "Led Zeppelin IV". Movie plot summary Martin Cortland (Robert Benchley), a philandering Broadway producer, is caught by his wife buying a gift for a chorus dancer, Sheila Winthrop (Rita Hayworth).
To save his marriage, Martin insists that dancer Bob Curtis (Fred Astaire) bought the gift, and sets the two up on date. Soon after, Bob is drafted into World War II and sent to boot camp. When Sheila travels to the camp to perform for the troops and visit her real boyfriend, Tom (John Hubbard), she and Bob fall in love.
The movie that made Rita Hayworth world famous was Gilda. A 1946 American film noir directed by Charles Vidor and starring Rita in her signature role and Glenn Ford. The film is known for cinematographer Rudolph Maté's lush photography, costume designer Jean Louis's wardrobe for Hayworth (particularly for the dance numbers), and choreographer Jack Cole's staging of "Put the Blame on Mame" and "Amado Mio", sung by Anita Ellis. Over the years Gilda has gained cult classic status. In 2013, the film was selected for preservation in the United States National Film Registry by the Library of Congress as being "culturally, historically or aesthetically significant". (wikipedia)
