Bruce Willis is a ''very good dad'' and acted like a father figure on the set of 'A Good Day To Die Hard'.
The 57-year-old actor has four children - nine-month-old daughter Mabel with his wife Emma Heming Willis, and grown-up kids, Rumer, 24, Scout, 21, and Tallulah, 19, with his ex-wife Demi Moore - and he used his parental skills to help his co-star Jai Courtney while shooting the action sequel.