It’s roller disco on the Rialto.

A stage version of the 1980 movie tuner “Xanadu,” which originally aimed to arrive Off Broadway this spring, has upped the ante by claiming Broadway’s Helen Hayes Theater, where the musical will open in early May.

No casting has been announced, but Jane Krakowski and Cheyenne Jackson, who appeared in a recent workshop of the show, look to be strong contenders.

New tuner will be the second Broadway outing this season for scribe Douglas Carter Beane, whose comedy “The Little Dog Laughed” opened at the Cort on Nov. 13.

Music will be taken from the pic, which starred Olivia Newton-John and Gene Kelly. John Farrar and then-Electric Light Orchestra member Jeff Lynne wrote the songs, which include the title track and chart-topper “Magic.”

Plot of the fantasy-romance follows a mysterious woman who inspires an artist and a has-been big-band leader to build a flashy roller disco. Pic flopped in theaters but went on to gain a rep as a campy cult classic.

Broadway tyros Robert Ahrens and Dan Vickery produce.