It’s not just the play that’s having technical difficulties.

Three production grips working on the Manhattan movie set of “The Amazing Spider-Man” found themselves trapped mid-air for three hours in a crane six stories high today when the huge contraption suddenly stopped functioning.

The grips were trying to build a platform for a camera on the roof of a building at Market and Madison streets in Chinatown around 11:15 a.m. when the malfunction occurred, workers said.

They got stuck near a six-floor fire escape. But they weren’t close enough to climb onto it – and wound up trapped for three hours before they were rescued by the FDNY.

“A simple day turned upside-down,” said one of the grips, Joe Gloster, 51, of Hollis Queens, to The Post. “The screen on the [crane’s] controls went blank – it was like someone turned off the switch.”

A production assistant on the ground offered to hoist up the men a bucket to relieve themselves after they had spent the morning drinking coffee, but the grips declined.

Firefighters finally used a cherrypicker – which has a basket at the end of a crane on a truck – to get the men down.

“Things like this happen all the time in film-business,” shrugged one of the other two trapped grips, Nick Yecuk, 47, of Long Island. “You get curveballs thrown .¤.¤. you have to work it out.”

The incident comes after months of bad luck also for the Broadway version of “Spiderman.”