GRITTY Roy Keane would make a perfect big screen hitman after wowing on set yesterday, a top director has revealed. The Manchester United icon brought the seaside town of Skerries, Co Dublin , to a standstill as he filmed a Sky ad — with experts now calling for him to become a movie sensation. Acclaimed Irish director Robbie Walsh, best known for Irish movie The Letters, told The Irish Sun: “I don’t know why Roy Keane hasn’t gotten into the ­movies sooner.

“Watching the clips of him ­acting on the streets of Skerries, I think he has amazing presence and a great look. "Roy has this real cool, silent character about him — if I was looking for a gritty silent hitman, Roy would be perfect.” Skerries locals looked on in astonishment as the ­ Cork man filmed scenes at four different locations in the north Dublin enclave.

And although the former Ireland skipper is often accused of being cranky, Keano delighted the throngs of well-wishers in attendance, exchanging hurling banter with a thrilled youngster. Roy was also happy to pose for a snap with The Irish Sun. But the 52-year-old was saying nothing about the filming and new Ireland boss Heimir Hallgrímsson .

A local insider revealed how the filming had started the previous day inside a new luxury home in Red Island, overlooking the Skerries harbour. The source told The Irish Sun: “It’s a really funny scene which starts with Roy in his house trying to watch the match. But there’s a window cleaner bothering h.