

Natalie Portman is shown in a scene of the 2010 film 'Black Swan.' Lilo/McMullan Co./Sipa/Newscom
Patrick Swayze and Jennifer Grey are shown in a scene from the 1987 film 'Dirty Dancing' in this photo. Lionsgate Home Entertainment/Reuters
Gene Kelly performs in the 1952 film 'Singin' in the Rain.' Kelly, a dancer and choreographer, brought his athletic grace and Irish charm to `Singin' in the Rain' and other great movie musicals of the 1940s and '50s. AP/File
Jamie Bell stars in the 2000 British film, 'Billy Elliot,' as a working-class boy whose love of dancing ballet helps him escape his oppressive surroundings in northeastern England. Giles Keyte / Special to The Christian Science Monitor / File
From left to right, Karina Sanchez, Wilson Castillo, Jatnna Toribio and Danilo from P.S. 115 Washington Heights dance team practice the meringue in a scene from the 2005 documentary 'Mad Hot Ballroom,' an inspiring look at New York City students in ballroom dancing competitions. Claudia Raschke-Robinson / Paramount Classics
'Mao's Last Dancer:' Chi Cao as Li and Camilla Vergotis as Mary McKendry in a scene for the 2009 film 'Mao's Last Dancer.' Courtesy of Samuel Goldwyn Company
John Travolta and Karen Lynn Gorney show off their dance moves in a scene for the 1977 film 'Saturday Night Fever.' Newscom
Paul Mercurio and Tara Morice display their dance moves in the 1992 film 'Strictly Ballroom.' Newscom
Actor Gregory Hines is shown in a scene from 'Noches de sol.' Digital Press Photo/Newscom
Shearer Moira dances in a scene of the 1948 film 'Red shoes.' Newscom
Jennifer Beals displays grace in the 1983 film 'Flashdance.' Newscom
Actress Julia Stiles portrays 'Sara Johnson' in the 2001 film 'Save the Last Dance.' Newscom
Actor Kevin Bacon is shown in a scene of the 1982 film 'Footloose.' Newscom