Set in the 9th century, this animated film follows a young boy named Brendan who lives in the Abbey of Kells. Under the watchful eye of his strict uncle, Abbot Cellach, Brendan becomes involved in the creation of a legendary illuminated manuscript. As he embarks on a quest to complete the book, he encounters mystical creatures and faces the looming threat of Viking invasions. The film, co-directed by Tomm Moore and Nora Twomey, was nominated for an Academy Award for Best Animated Feature. It is known for its unique visual style inspired by Celtic art. You can watch it for free on 123Movies / Movies123.