Cate Blanchett credits "luck" and honesty to having a strong marriage to hubby Andrew Upton.

The 'Blue Jasmine' actress has been married to theatre director Upton - with who she has sons Dashiell, Roman and Ignatius - for 16 years but she doesn't think sharing an industry with her spouse makes any difference to their union.

She told HELLO! Magazine that she doesn't think it's more difficult for actors to have a good marriage than anyone.

She admitted that she feels `fortunate` to have such an `amazing` husband.