Given scene/plot descriptions from movies or TV shows, and given a specific question about the scene, summarize the question into a title

Jurassic World  The Indominus Rex is a genetically modified new kind of Dianosour. Now when Masrani first went to see the Indominus, part of the conversation was like    Masrani: What happened to the sibling?    Claire: She ate it.   So she ate her own kind. Also Owen mentioned in a scene that    Owen: She has seen all of this for the first time. She doesn't   know what she is? She'll kill everything that moves.     Owen: She is learning where she fits in the food chain.   And these lines were true until the Indominus met the Velociraptors. It didn't eat them, it started communication with them. But strangely before that it ate her sibling.  Okay now one explanation can be that part of its genes were Velociraptor, so it communicated with them and eating the sibling was just her hunger. Then why did T-Rex and Indominus fight? Part of her was also from T-Rex. She should've communicated with the T-Rex, too. Something is not right. Why didn't it eat the Velociraptors?
Why didn't the Indominus Rex eat or kill the Velociraptors?

In The Count of Monte Cristo (2002), Fernand shot Mercedes and escaped on his horse but he stopped in mid-escape.    Then Edmond Dante arrivs and kills him.  Why did he stop himself from escaping?
Why did Fernand stop escaping after he shot Mercedes?

In the Season 3 of Game of Thrones, I didn't understand that how the Stark family got two little children of the Lannister family as prisoners?

How did the Stark family capture the Lannister family's children?