Having watched this tonight i think i can offer a fair review , its a joke to indicate the film doesn't have grounding within the book , there just too alike for words , however the book contains long winded accounts of activity that are tedious and boring , thankfully these sections were omitted from the film , good news then ? well no , sadly also key points in Howard marks life are also not in the film , the result has sections that make no sense whatsoever to the layman , Howard appeared to move around without reason and know people without explanation , the consequences of others actions are also omitted leaving a disjointed and slightly sinister film , there is humour but its not of the lol sort , knowing the film was shot over just 2 months then i think it shows , Howard marks has led a life so rich and varied and yet it simply wasn't portrayed in this film to its fullest , it leaves you with an empty feeling in that the film felt like soup when it could so easily have been steak , Ifans could not have done a better job and the only lightweight in the cast would be Chloe sevigney who didn't have much to say and didn't display a passion in the role , over all the film IMO is worth of a 6.5/10
