Oscar-nominated actress Jessica Chastain dons an apron at Jamie Oliver and Jimmy Doherty's Southend cafe. In honour of their Hollywood guest, the hosts pull out all the stops and create an all-vegan menu - including a cauliflower tempura summer roll. Jamie rustles up a colourful pea falafel fritter wrap, complete with home-made hummus, crispy chickpeas and epic garnishes, while Jimmy takes the idea of movie night to the next level by building a popcorn maker. The boys also report on the increasing numbers of people choosing to replace dairy milk with plant-based alternatives.