She is approximately 10-11 in The Lion, The Witch, And The Wardrobe and 12 in Prince Caspian
She was 13!
He was 15 when he filmed Chronicles of Narnia. He was so cute in that movie!
Moseley's character of Peter and Popplewell's character of Susan are not featured in the book "Voyage of the Dawn Treader". they were told at the end of "Prince Caspian" that they were too old to return to Narnia. However, sites listing the cast for "Voyage of the Dawn Treader" also list Moseley's name, so it is yet to be seen how Peter will come into the story when he is not in the original book.
After the events of the third film in the Chronicles of Narnia series, Peter, Edmund, Lucy, and Susan do not return to Narnia as they are considered too old. They continue growing up in England and lead their lives as young adults.
Peter returns in the final book of the series, The Last Battle. In the Chronicles of Narnia, Susan does not return with the rest of the heroes because she had stopped believing in Narnia when they left this world for the last time (they were killed in a train accident). Whether she returned to a belief in Narnia and then made her own return to Narnia later is not known.
Ben Barnes was around 25 years old when he played the role of Prince Caspian in "The Chronicles of Narnia: Prince Caspian," which was released in 2008.
Susan Pevensie is a fictional character from C.S. Lewis's "The Chronicles of Narnia" series. In "The Lion, the Witch, and the Wardrobe," Susan is portrayed as a young girl, around the age of 12 or 13. As the series progresses, she grows older and is eventually depicted as a young woman in "The Last Battle." Therefore, her age varies throughout the series, but she is generally depicted as a teenager.
The character of Susan does not appear in the book The Voyage of the Dawn Treader (except in a short scene in Lucy's thoughts alone), so she will not be appearing as a main character in the film, just in a short cameo appearance, as will William Moseley (Peter) and even Tilda Swinton (the White Witch).
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The second movie in the Chronicles of Narnia series is "The Chronicles of Narnia: Prince Caspian," which was released in 2008. It follows the Pevensie siblings as they return to Narnia to help Prince Caspian reclaim his rightful place as the king of Narnia.
Georgie Henley was 12 in the first movie of Narnia
I Think she was 12 year old and know she is 13 or 14