Gobstoppers are a real candy that you can buy (they're alright, but kind of annoying if you want to use your mouth for anything else in the next half-hour), the movie didn't invent them. What they invented was the "everlasting" gobstopper.
I always knew those candies as jawbreakers (should be self-explanatory based on the above description) so it might be also be a regional/generational thing
Gobstoppers are a real candy that you can buy (they're alright, but kind of annoying if you want to use your mouth for anything else in the next half-hour), the movie didn't invent them. What they invented was the "everlasting" gobstopper.
I always knew those candies as jawbreakers (should be self-explanatory based on the above description) so it might be also be a regional/generational thing
Of course it's a regional thing.