Actress Miriam Margolyes was rejected by the creators of James and the Giant Peach .
Film James and the Giant Peach co-stars Joanna Lumley and Magda Apanowicz who played James 's aunts in the live-action segments while Miriam Margolyes was rejected from the role , and Simon Callow , Richard Dreyfuss , Susan Sarandon , Jane Leeves , David Thewlis , and Margoyles voiced his insect friends in the animation sequences .
James and the Giant Peach -LRB-film-RRB-