Alan Yentob meets the five surviving members of Monty Python - John Cleese, Michael Palin, Terry Jones, Terry Gilliam and Eric Idle - as they prepare to reunite on stage.

The five surviving members of Monty Python have spent the last 20 years dismissing a reunion as 'absolutely impossible'. Now, it seems, they've changed their minds...

In this special edition of imagine... Alan Yentob follows Cleese, Palin, Jones, Gilliam and Idle (collective age 357) as they pursue solo projects in far-flung locations, reflect on old age, and prepare for the shows in London that will bring the final curtain down on Python after 45 years.