Group 1:
Immune (1): Fellowship of the Rings
Boot (1): Return of the Jedi
Group 2:
Immune (1): The Dark Knight
Boot (1): Reservoir Dogs
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Nominate Balthier/Dr. Cid for the Greatest Game Rivalry Contest
Also Tidus/Jecht, Squall/Seifer, Sora/Riku... but mostly Balthier/Dr. Cid :)