The choice of George Galloway to front this crowdfunded character assassination of Tony Blair is a bit of an own goal. While there is no doubt that Blair should be called to account, Galloway’s lack of credibility and air of insufferable sanctimony have the unexpected result of making you want to side with Blair and the long list of despots who – apparently – now list him on their payroll. The definitive film on the Iraq war remains Charles Ferguson’s No End in Sight; the disintegration of the Labour party is an ongoing story that moves too quickly for any documentary to capture.