7800 fan

I recently watched a movie from the 1980's called "Cloak and Dagger." The movie starred Dabney Coleman and was based around an atari video game called, "Cloak and Dagger." The game looked pretty sweet on the movie and I was wondering if it actually even existed. I have never seen a listing for it, and I was wondering if anyone knew if it existed or not, and if there were places that were willing to sell the game. Just wondered.