Trivia / Twin Dragons

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For the Jackie Chan movie:

• Dawson Casting: Boomer and John are supposedly 26 years old when they first met each other for the first time, but both of them are played by the then 38-year-old Jackie Chan.
• Playing Their Own Twin: Both John and Boomer are played by Jackie Chan.
• What Could Have Been: The movie was originally going to be titled Double Dragon. It was likely changed to avoid confusion with the video game franchise.