They're filming something in the main square in Bolton this dinner time.

I passed a film crew outside WH Smiths. They had that railway track stuff, a camera man being wheeled on it and a man with a fluffy womble mike thing. So proper filming.

A crowd of about 50 looks on. As I casually gawp on my way to the bank I walk past two lads rounding the corner.

"Oy," yells one of them at the crew. "Porn star."

Three of the film people turn round.

The crowds titters.