Taste in films is subjective, so it's a bit tricky to explain what makes Laura a great film, but among the things I like about it is how during the first half of the film, Laura is believed to be dead and there is a certain aura of mystery about the character that builds up throughout flashbacks and the other characters' account of what she was like, which makes her sudden appearance (spoiler alert) very much alive in the middle of the movie quite the surprise. The haunting theme heard throughout the movie, coupled with that iconic portrait of Gene Tierney towering over the mantel piece in her apartment, create a real mystique around the character. Also, Clifton Webb as Waldo Lydecker is just a joy, full of highly quotable, sarcastic lines. In any case, I've always found it to be a thoroughly enjoyable movie (granted, I'm partial to the noir genre) that I like to revisit every once in a while (just like Leave Her to Heaven, another great Gene Tierney movie, this one shot in spectacular Technicolor!).