This movie is very famous movie,sequal of Narnia.
CAST
Ben Barnes --- Prince
Caspian Georgie Henley ---Lusie
Pevensie
Skander Keyanes---Edmund
Pevensie Wiliam Moseley---Peter Pevensie
Anna Popplewell---Suesan Pevensie
Story
In this movie last movie story is picked up,king and queen of Narnia that means pevensie
brother and sister goes to real world from the magical world of Narnia.After a year they return to land of narnia but 1 year in real world meant 1300 year in Narnia,things completly changed,Telmenerains attacked narnia and took over it and those who saved there life ran to jungle to save their life.Prince caspian father was killed by his brother Miraz and his son that means Prince Caspian was bethroned so he ran to towards forest to save his life there with help of left Narnians and Pevensie family he get his throne back and he gives people of Narnia their land back.
This must be confusing for you so you must watch the movie to clear everything.