The answer depends on your core business and the purpose of using your mark in connection to the animations.
Suppose your business is somehow connected to entertainment services, and you are offering animation creation to your clients as a service. In that case, you should also consider registering your trademark in another class.
However, if these services serve only marketing purposes, an additional class is unnecessary.
If your need help with selecting appropriate trademark classes, you may want to request our free lawyer's check.