Continental Drift is a term used to describe the moving of tectonic plates below the surface of the earth. The Seven Continents we know today are formed from two other continents, Laurasia and Gondowana, as a conclusion of a continental drift.
Laurasia and Gondwana both formed from another single continent known as Pangea, also a result of continental drift.
In the animated film "Ice Age: Continental Drift" , we are actually seeing the seperation of Pangea into Laurasia and Gondowana.
Hope, you can understand.