Bobo Chan, Myolie Wu, Joe Ma, John Tang and Jack Wu were among the cast members from TVB's "Passion for Black Forest" filming a cake-making examination yesterday. Before the shoot started, Bobo, John and Jack were picking at the cakes on the set and Bobo reveals that there are different cakes for them to try in every scene, so since filming started, she has put on a few pounds. She laughs: "When I see myself on the screen now, I am worried that my face will become wider and wider."