Detective Conan Movie 13: The Raven Chaser, Detective Conan Movie 20: The Darkest Nightmare Recommendations
Both of these Detective Conan movies revolve around original members of the Black Organization. The Darkest Nightmare rehashes several ideas from this earlier movie and the somewhat experimental structure of Episode 304 (the awesome bomb one). Both TRC and 304 are more focused on what they wanted to accomplish and are better for it. Basically, if you liked TDN, check these out for more. If you didn't like TDN, check these out for better.