Before digital photography and post production on computers, you picked film for the outcome of image you wanted. For neutral, run of the mill shots any conventional color film would do the trick, but for move vibrant and saturated images, you would choose something like Fuji Velvia slide film or my personal favorite, Kodak E-100 VS, or Very Saturated. The chemical emulsion within helped produce vibrant colors. The downside of course, in addition to the cost of film and developing, is that you had to finish that roll before changing films, whereas digital will allow you to shoot all day and apply whatever effects you want in post. Achieving vibrant color without overdoing it can often be a challenge though, but here are some tips to get it just right.
Read more: How to Get Vibrant Colours in Photos Without Overdoing It | Light Stalking