That movie is expected to arrive in fall 2015, but in the meantime, we're celebrating Christmas Vacation.. In honor of the holiday classic's 25th anniversary, we're catching up with where the cast is now in the gallery above.
It turns out that the active ingredient in Pepto-Bismol (bismuth subsalicylate) contains a chemical called bismuth. When a small amount of bismuth combines with trace amounts of sulfur, a black-colored substance (bismuth sulfide) is formed.
@ GenevaMech- The black residue on your tongue after ingesting pepto bismol is a result of the bismuth subsalicylate (C7H5BiO4) reacting with trace amounts of sulfur in your mouth and digestive track. When this compound reacts with sulfur, it creates bismuth sulfide, which is what turns your tongue, and possibly your stool black.