I would respectfully ask my parents to show you first the video to see
if you approve of your child viewing it. A lot of the videos are very
good lessons about how to get along with others and behavioral stuff. ~ Doubtfully Yours
I assume you're trying to walk on eggshells and keep communication open with your Mum. I would be careful to over-react and say anything toooooo negative against JWs. But, I think the recommendation quoted above is reasonable and you can give reasons to Mum that are not too offensive, for example, I really do not think children should be exposed to violent pictures of people being killed such as are in the Bible Story Book. And, I do not want her to think that all people except JWs are "bad" and going to be killed by God, because YOU do not believe that. (Pin your mother down as to if she REALLY believes that. Most JWs will avoid the issue by saying "Only Jehovah is judge of that". Then you can counter that you agree and really don't think Jah will destroy "good people" such as . . . . [non-JW family members who are clearly "good people"].
Your daughter will be exposed to lots of ideas as she goes to school, plays with friends, etc. You'll need to explain to her that many people believe many different things when it comes to religion. Even Grandma's crazy religion.
Doc
The greatest revenge is living a happy & successful life!