Pour the popcorn into a large bowl, and remove any unpopped kernels.
Place the chocolate melting candy in a medium microwave-safe bowl. Microwave on medium power for 1 minutes. Stir until melted and smooth. If needed, add additional heating time in 30-second increments, stirring after each time, until the candy is melted and smooth.
Pour the melted candy over the popcorn, but do not stir yet.
Crumble the potato chips over the popcorn bowl (it's okay to leave big pieces). Using a large rubber spatula, gently stir to coat.
Spread the popcorn mixture on a large piece of parchment paper or a large silicone baking mat, and sprinkle with the sea salt, adding more to taste if desired.
Allow to cool until the chocolate coating has hardened, about 20 minutes. Break into pieces before packaging or transberring to a bowl for serving. The popcorn may be stored in an airtight container for up to 4 days.