Acts of loyalty were very important during the time of King Arthur and the Middle Ages. Loyalty is still reflected in films and books today. The book Summer Sisters, by Judy Blume (Summer Sisters), and the film My Sister's Keeper, directed by Nick Cassavetes (New Line Cinema) are two excellent examples of how loyalty is portrayed. Knights in the Middle Ages were very chivalrous. Chivalry is the expected behavior of nobles in medieval times, requiring honor, generosity, loyalty and courage (Answers). Loyalty was an important element of chivalry in the Middle Ages. Loyalty is described as faithfulness to your commitments or obligations (Random House). Both Summer Sisters and My Sister's Keeper can be linked to how the element of loyalty is still reflected in literary works and films today. Summer Sisters was written in 1998 by Judy Blume (Summer Sisters). It's about two girls who spend every summer together from their twelfth birthday until their eighteenth birthday (Book Browse). The book is based on two main characters, Caitlin Somers and Victoria Leonard, or Vix. It begins with Caitlin inviting Victoria to spend the summer with her at her father's beach house on Martha's Vineyard (Summer Sisters). From that summer until their senior year of high school, they spent every summer together. Victoria is very shy, but intelligent, while Caitlin is more wild, flirtatious and manipulative. Over the years, the two girls become closer (Book Browse). Vix's bond with her "summer family" reshapes her life forever (Browse Books). On the island, Victoria meets a boy named Bru. They dated throughout her high school years. When Vix leaves for college, she stays loyal to B...... middle of paper ......were very important in medieval times, these elements are still represented through films and literary works today.Works CitedBlume, Judy. Summer Sisters. New York, NY: Random House Inc., 1998. Print. “British History: Chivalry”. Answers. Internet. May 25, 2010..Carvalho, Claudio. "Plot Summary for My Sister's Keeper". BDIM. Internet. May 25, 2010..My sister's keeper. Real. Cassavetes, Nick. New Line Cinema, 2009. DVD. My sister's guardian. Internet. May 23, 2010. Random House Webster's Unabridged Dictionary. Integral. New York: RandomHouse, 2001. “Summer Sisters.” Browse books. Internet. May 21, 2010.summer-sisters>.