If you ever fly to Frostbite Falls, snakes are allowed through security if they are under 3 ounces.
The background seen in the DreamWorks Moonboy logo is an homage to the original Rocky and Bullwinkle magic show stage.
The pointy steeple is a reference to the famous St. Nicholas church in Prague.
The guest that Bullwinkle serves on the river boat is inspired by the Line Producer's father-in-law.
Boris' bomb in the opening titles is an homage to his weapon of choice from the original series too.