The bulk of the book is taken from journals that Holzman meticulously kept all the way from pre-production through the final phase of editing. Those entries make an eye-opening read for b-movie buffs: there's a big difference between having a theoretical understanding that exploitation filmmaking is a struggle and actually seeing how the day-to-day grind of it plays out.

The end result delivers plenty of chaos in a tight, deliriously over-the-top 77-minute package - and it's all the sweeter for having using recycled props, costumes, sets, footage, etc. in the process. Forbidden World is thus a model of Corman's recycling aesthetic and a perfect companion piece to Galaxy Of Terror.