It is slightly earlier (1977) but in KingdomeKingdom of the Spiders there are several shots of people and other items cocooned in spider silk. In fact
at the end when 'Rack' (William Shatner) looks outside the house the entire landscape is covered in spider webs. "To their surprise, the radio broadcast does not mention the attack; the outside world is oblivious to what happened. Hansen pries off the boards from one of the lodge's windows, and discovers the building, along with the entire town of Camp Verde, encased in spider silk cocoons."