There are multiple ways to analyze films, including using Lacey's framework of five elements (setting, character, narrative, iconography, style) to determine a film's genre. Auteur theory can also be used to analyze a director's style and determine if they demonstrate characteristics of an auteur such as consistent themes, innovation, or artistic merit. For example, Martin Scorsese is considered an auteur due to his signature techniques like voiceovers and tracking shots. Film analysts use Lacey's elements to closely examine genres and their conventions. For example, the trailer for "A Walk Among the Tombstones" uses conventions of the action thriller genre like its New York setting and a protagonist on a vigilante