There's a reason Terry Gilliam was nicknamed Captain Chaos. The filmmaker harbours the type of brain in which order dies and pandemonium reigns. This cerebral mishmash has served him well in his cinematic career, particularly when it weaves around clear plots such as those in 'Monty Python and the Holy Grail' (1975), 'Brazil' (1985) and even 'Fear and Loathing in Las Vegas' (1998). It's when Gilliam refuses to tether the cacophony in his brain that his films fall flat. Unfortunately, his latest opus, 'The Imaginarium of Dr. Parnassus,' which premieres at the Toronto International Film Festival, is an exercise in pure unadulterated self-indulgence.