The Salvatore brothers in "The Vampire Diaries" serve as a great example of the bond Jane and her sister share. They may fight each other and drift apart, but in the end they would do anything for one another.
Now, Voyager (1942). This is a must see for any carer or those in contact with a carer. This is a story of a daughter who is her mothers carer, but the mum is very manipulative and controls her daughters life. It's the story of the daughters journey to freedom.