Get the top 10 films in your Movies folder ranked by IMDB rating. It ain't pretty, but it works.

imdb_rank.rb

require 'rubygems'
require 'nokogiri'
require 'open-uri'

class IMDBRank
  def self.rank(directory, number_to_return=10)
    Dir["#{File.expand_path(directory)}/*.{avi,mp4,m4v}"].sort.map do |filepath|
      File.basename(filepath) =~ /(.*?)(?:\s+.(\d{4}).)?\....$/
      new($1, $2)
    end.reject { |film| film.score.nil? }.
        sort_by { |film| film.score }.
        reverse.
        first(number_to_return).
        each do |film|
      puts "#{film.score} #{film.name}"
    end
  end

  BASE_URL = "http://www.imdb.com"
  SEARCH_URL = BASE_URL + '/find?s=tt&q='

  def initialize(name, year=nil)
    @name = name
    print "Checking score for #{name}#{" [#{year}]" if year}... "
    $stdout.flush

    @current_page = Nokogiri::HTML(open(URI.escape(SEARCH_URL+"#{name} #{year}")))
    if score.nil?
      @current_page = Nokogiri::HTML(open(first_result_url)) unless first_result_url.nil?
    end

    puts score
  end
  attr_reader :name

  def score
    elements = @current_page.css('.rating-rating')
    return nil if elements.empty?

    @current_page.css('.rating-rating').first.text.sub('/10', '').to_f
  end

protected

  def first_result_url
    return nil if first_result_elements.empty?
    @first_result_url ||= BASE_URL+first_result_elements.first['href']
  end

  def first_result_elements
    @first_result_elements ||= @current_page.css('#main table:nth-of-type(2) tr:nth-of-type(1) td:nth-of-type(3) a:nth-of-type(1)')
  end

end

IMDBRank.rank('~/Movies')