From what I've read CO is no longer in movie popcorn. Like every other restaurant, or frankenfood we eat they were all pressured to use "heart healthy" oils. Want an eye opener...read Wheat Belly and see what happened to wheat. He's only one writer I know, but he's not the only one to point it out.
We don't have any type of vegetable oil in the house. Pretty much all we use is olive oil for cooking. Since we steam or sorta wok veggies it's perfect. Most meats are grilled. We eat very simply.