In Tim Burton’s ‘Big Fish’, Will Bloom (Billy Cradup) has been fed nothing but tall tales from his father Ed (Ewan McGregor when younger; Albert Finney when Older) so much so that there is nothing else to him. With Ed apparently on his deathbed, Will makes one last attempt to find some truth. Based on Daniel Wallace’s novel (which I haven’t read and so could be different), John August’s screenplay and Burton’s vision makes this one of those annoying excursions into magic realism that feels no duty to anything grounded.