Three Days (movie, 2001)

Ten years ago, Andrew married his childhood sweetheart, Beth. Now Andrew's a high-powered literary agent, but his relationship with his wife has not fared as well. When Beth is tragically killed just days before Christmas, an angel gives Andrew the chance to relive the last three days his wife was alive. But he can't change fate and Beth will still lose her life. However, Andrew can still discover the gift Beth needs most from him.