Rachel McAdams is so unbelievably gorgeous, that only an actress like her can make you believe in time travel and falling in love with a man who disappears at some very crucial moments. Eric Bana and Rachel McAdams have a lot of chemistry in this movie. And they need it. It's hard to buy that any woman would want a husband who evaporates at Christmas time, and turns up naked all over the country (clothes apparently don't time travel, who knew?). But McAdams and Bana make you believe that they are so in love, so connected by a timeless love, that a woman would put up with the downside of time travel. Read the book first, and see this movie.