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These days, you can do pretty much anything with CGI (sometimes it’s good, sometimes it’s… not). But back in the early days of movies, filmmakers had to be a lot more creative about they filmed stunts. This collection from silentmoviegifs explains how some impressive scenes from movies by the likes of Charlie Chaplin and Buster Keaton were achieved — our personal favorite is the Chaplin rollerskating scene.

Today, it seems like anything that can be imagined can be done through CGI but in the days of silent films, they had to use old school technology to create the “special” effects.