If you like "Marcel the Shell with Shoes On," you're probably drawn to stories that blend whimsy with heartfelt exploration of life's small yet profound moments. Directed by Dean Fleischer Camp, "Marcel the Shell with Shoes On" is a heartwarming mockumentary that brings to life Marcel, a one-inch-tall talking shell voiced by Jenny Slate. Marcel lives with his grandmother, Nana Connie (Isabella Rossellini), in an Airbnb. When a documentary filmmaker discovers them, Marcel's life transforms as …