By: Mark Barber Swiss surrealist H. R. Giger was something of a phantom, often disappearing into one of the many nooks and crannies of his own home.  Yet, what makes Giger so unique and compelling–both as an artist and as a person–is another elusive phantom in Belinda Sallin’s Dark Star: HR Giger’s World. Dark Star disappoints not in its reasonably zealous adoration of Giger’s cyborg nightmares, but in its simplistic analytical approach to both himself and…