Are you?
"You're taking her with you, are you?" - the phrase from a movie.
I've been taught at school that if you make a statement part of a sentence positive (you're taking) then a question part must be negative (aren't you?). Is that possible in any case this rule may be ignored?

Question

Are you?
"You're taking her with you, are you?"  -  the phrase from a movie.
I've been taught at school that if you make a statement part of a sentence positive (you're taking) then a question part must be negative (aren't you?). Is that possible in any case this rule may be ignored?

Answer

The meanings are different.

1.  You are taking her with you, aren't you?"

It means, "I expect you to"; "I want you to".

2.  You are taking her with you, are you?

Two possible meanings:

a.  You are just repeating what the other person has told you, just to make polite  conversation.  Example:  "My husband is a lawyer."  " Your husband is a lawyer, is he?"  This technique is used by politicians and royalty when they meet people at a garden party or on a walkabout.

b.  It means, "Oh, is that what you are going to do?  I didn't know that."

Answer

You're right about the general rule. In this case, I couldn't say for sure without knowing the context, but it seems to me like the speaker may be challenging the other person -- suggesting that taking her (is it a person or a vehicle / piece of technology?) would be a bad idea....