Sandra Bullock (AP file photo)

The mother of Sandra Bullock's stepdaughter has called for a summit meeting with the actress, so they can discuss an amicable end to their bitter custody battle.

Janine Lindemulder is currently fighting her ex-husband Jesse James and his current wife Bullock over custody of Sunny, who was handed to the couple after tax evasion charges landed the porn star behind bars for six months.

Bullock and James recently told a court they feared for the child if she were to return to her mother, claiming the youngster would be exposed to "pornographers, drug addicts, guns and firearms, felons and other unsafe environments".

But Lindemulder insists she's a changed woman, and she is being unfairly portrayed by her ex and his wife, and she wants to sit down with Bullock, so the two women can get to know each other.

She says, "What would give her (Bullock) the right to take away my daughter? This is my daughter! I've absolutely made horrific choices (regarding drugs) in the past.

"Sandra doesn't know what goes on in my house, (but) please, come over, I'd love to sit down... two women. I do believe Sandra is so interested in Sunny (because) she (thinks she) is saving Sunny from me, from her own mother. That's what I believe.

"It hurts tremendously, the accusations. Especially from Sandra, even more so because we've never sat down and talked. That's the one thing I wish (to) remedy more than anything. Just communication."