Dylan Farrow's brother has defended Woody Allen.

The 'Blue Jasmine' filmmaker's adopted daughter spoke out at the weekend alleging he had abused her at the age of seven, but her older sibling Moses insists the allegations were part of his mother Mia Farrow's ''vengeful'' response to her former partner's affair with her adopted daughter Soon-Yi Previn.

Moses - who is estranged from his mother and several of his siblings - said: ''My mother drummed it into me to hate my father for tearing apart the family and sexually molesting my sister. And I hated him for her for years. I see now that this was a vengeful way to pay him back for falling in love with Soon-Yi.

''Of course Woody did not molest my sister. She loved him and looked forward to seeing him when he would visit. She never hid from him until our mother succeeded in creating the atmosphere of fear and hate towards him.

''I don't know if my sister really believes she was molested or is trying to please her mother. Pleasing my mother was very powerful motivation because to be on her wrong side was horrible.''

Dylan - who is now 28 and goes by a different name - has rebutted all of Moses' claims, including that Mia was abusive, ''intimidating'' and hit her children.

She told People magazine: ''This is such a betrayal to me and my whole family. My memories are the truth and they are mine and I will live with that for the rest of my life.

''My mother never coached me. She never planted false memories in my brain. My memories are mine. I remember them. She was distraught when I told her. When I came forward with my story she was hoping against hope that I had made it up.

''I will not see my family dragged down like this. I can't stay silent when my family needs me and I will not abandon them like Soon-Yi and Moses. My brother is dead to me. My mother is so brave and so courageous and taught me what it means to be strong and brave and tell the truth even in the face of these monstrous lies.''

Mia - who has 14 children from several relationships and solo adoptions - first made the abuse claims during a 1992 custody battle with the filmmaker. The allegations were investigated but later dropped without charge.