Here's a genuine world exclusive: the world premiere of a movie made by the Daily Star's most famous renegade staffer, Richard Peppiatt, will take place next month at the Sheffield documentary festival.

One Rogue Reporter - described on the festival website as "a gutsy takedown best served funny" - has a star-studded cast of interviewees, including Hugh Grant, Steve Coogan, John Bishop, Max Mosley, AC Grayling and John Prescott.

It will also be shown in London during June, at the East End film festival. According to its programme, Peppiatt "delivers a mercilessly satirical dissection of his former trade... he lampoons the hypocrisy and dishonesty of his former employers through a series of mischievous stunts and interviews."

You can get some idea of what to expect from the 55-minute "brilliant, searing and very funny exposé" by seeing the trailer here. As you will note, certain of its "stars", such as the former Sun editor Kelvin MacKenzie and current Daily Mail editor Paul Dacre, were very reluctant interviewees.

In effect, the indefatigable Peppiatt, who claims to be a "recovering tabloid hack", has transformed his successful Edinburgh fringe stage show on to film, but with a great deal of additional material.

Full disclosure: I have a walk-on part. Two other Guardian journalists, Nick Davies and Owen Jones, also appear, as does The Independent's Joan Smith.