在这部玛蒂尔达和备用大脑动画/短片片中,小女孩玛蒂尔达想成为世界上最聪明的人。当她的大脑已经无法承载所有她已经学到的知识，她的母亲给她买了一个备用大脑。两个大脑当然胜过一个，然而玛蒂尔达并不知道她应该何时何地戴上哪一个大脑，并且不久之后她就丢掉了第二个大脑。我们不知道她会何去何从，幸亏曾经有一个球偶然之间飞进了玛蒂尔达的房间——这改变了她的人生。
This is a story about a girl who wished to be the smartest in the world. When all the things she'd learned could no longer fit in one head, her mother bought her a backup one. Two heads are better than one, right? But the girl soon became confused which head she should wear when, and shortly lost the second one. It is uncertain what would've happened if not for a ball that accidentally flew in through her window - a ball that changed Matilda forever.
