After years of planning, it has been announced that Gabriel Byrne, Colin Farrell and Cillian Murphy will star in actor-director Brendan Gleeson's film of Flann O'Brien's classic book 'At Swim-Two-Birds'.

Variety reports that Irish production company Parallel Pictures is making the long-awaited film, which has a budget of $11m.

Gleeson will make his directorial debut with the film and adapted O'Brien's book for the screen.

He will also co-star in the film.

Flann O'Brien was the pseudonymn of civil servant Brian O'Nolan (1911-1966), who also wrote under name the Myles na Gopaleen for the Irish Times.