Long before the invention of CGI, old school practical effects introduced movie-goers to worlds, characters, and feats of impossibility that still somehow came alive on-camera. Without computers, green screens, and motion capture technology, filmmakers relied upon practical effects that would be CGI today in order to bring their imagination to the big screen. The primitiveness of the tools at their disposal, in comparison to today's special effects, belies the amazing scenes and stunts old-school directors captured on film.
Today, when CGI can even replace people, it boggles the mind to look back on insane practical effects from movies and even consider how they finished production on time. Yet, many a classic film managed to create visual impossibilities using only practical effects, and some of the best are included below. Take a gander at these memorable cinematic moments, and imagine how a modern director might tackle these challenges today.