movie.3.rb

class Movie < ActiveRecord::Base

  class Movie::InvalidKeyError < StandardError ; end

  def self.find_in_tmdb(string)
    begin
      TmdbMovie.find(:title => string)
    rescue ArgumentError => tmdb_error
      raise Movie::InvalidKeyError, tmdb_error.message
    end
  end

  # rest of file elided for brevity
end