LATEST: Katie Holmes has dispelled rumours her husband Tom Cruise uses magic to keep pizza warm by admitting it's all about dry ice. Queen Latifah and Holmes' other Mad Money castmates were puzzled when Cruise visited his wife on the movie set in Louisiana with piping hot pizzas from the actress' favourite restaurant in Chicago, Illinois. Latifah immediately became hooked on the Giordanos treats but now admits she has no idea how Tom and Katie kept the pizza fresh-baked. Holmes reveals, "Giordanos send dry ice which keeps the pizza hot." And the restaurant bosses are so thrilled with Holmes' endorsements they've made her one of their most valued customers. She says, "I like food in a lot of different cities and I have my favourites and it really gives me a lot of pleasure to share that with people and watch their reaction."