Helena Bonham Carter was forced to miss the London premiere of her new movie SIXTY SIX on Monday (23OCT06) after her two-year-old boy broke his arm Bonham Carter had no choice but to abandon her plans after her son with film-maker Tim Burton, Billy Ray, had to be rushed to hospital after an accident at home Her spokeswoman says, "He broke it falling off a sofa "He had to be put under at the hospital on Monday night to get it fixed and Helena needed to be there "She'd never have forgiven herself otherwise "