The new documentary “Every Little Step” chronicles that singular sensation, the birth of Broadway’s “A Chorus Line.”

The film’s co-director, Adam Del Deo, says you don’t have to be a dancer to relate to those struggling hoofers – or the battle to bring the show to life back in 1975.

“It’s about committing yourself fully to try to achieve something, and the passion that goes into that process,” Del Deo says.

The meta-documentary recalls how hundreds of dancers tried to land a role in the original Broadway show, “a mirror of what the show itself is,“ Del Deo says.

And none of it would be possible with the passion and artistry of the show’s creator, the late Michael Bennett.

The key to “Step” was gaining access to long-buried audio tapes of Bennett discussing the show from a very personal perspective.

“No one had ever heard the tapes,” he says, adding the 20-30 hours of audio were locked in a vault until recently.

“Step” features talented artists auditioning for the role of a lifetime before a panel of cynical judges. Sound familiar?

But Del Deo didn’t want to piggyback onto a certain cultural zeitgeist.

“We were very sensitive to make it not like ‘American Idol,’” he says.

Tomorrow: “Every Little Step” co-director James D. Stern shares how “A Chorus Line” impacted his own career.

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