All families should have this film in their library and watch it at least once a year!  It has something for everyone, improves your kid's vocabulary and will keep them interested from the first scene.  It has a wonderful cast of comedic actors that are unrivaled and was directed by Rob Reiner, Carl Reiner's son.  Here's the plot: 

When a young boy falls ill, his grandfather pops round to visit him. To cheer his grandson up, Grandpa has brought a storybook; The Princess Bride, a tale of the love between the beautiful Buttercup and the besotted Westley, a love cruelly interrupted by Westley's...