This week, The Business revists a conversation with the creators of “Marcel the Shell With Shoes On.” After almost an eight-year hiatus, actor Jenny Slate and director Dean Fleischer-Camp are bringing their lovable Marcel the Shell back to life. This time audiences will see the seashell with two pink shoes and one plastic eye, who babbles insightful and funny life-observations, in the stop-motion, feature-length mockumentary, “Marcel the Shell With Shoes On.”