The 38-year-old actress is well known for her unusual dietary habits, previously being on the extremely strict macrobiotic eating plan, and speaking at the Roundhouse Studios for the iTunes Festival on Tuesday she revealed she was not a fan of tinned snacks. She said: "I'd rather smoke crack than eat cheese from a can." The Iron Man star – who recently unveiled her first cook book My Father's Daughter… - also revealed she wouldn't take her kids to fast food restaurant McDonalds, but may find it difficult if they knew about the toys that come with some meals. Gwyneth –...