Its fine if you have done your bachelors in Computer Science and looking for masters in animation.
But, at the time, when you have to take the admission, you need to be fully prepared.
Its obvious, that the interviewer will ask you that why you want to do masters in animation instead of perusing your field. At that time you need to answer them very confidently that, animation is a very vast domain and I have a lot of interest into it.
You need to answer them very smartly to get the admission in well reputed university.
All The Best !!!