Full moon is called a blue moon. The term "blue moon" used in this sense may date to as early as the 16th century, but it became well known in the United States due to the "Farmers' Almanac" (published since 1818). According to the "Farmers' Almanac", a "blue moon" is the third full moon in any period between either solstice and equinox, or between equinox and solstice, (calculated using the mean tropical year), which contains four full moons. These seasons are equal in length, unlike the astronomical ones, which vary in length depending on the Earth's speed in its elliptical orbit round
Transformers: Dark of the Moon called the Twins entirely from "Dark of the Moon": "This one really builds to a final crescendo. It's not three multiple endings. One thing we're getting rid of is what I call the dorky comedy. [The twins are] basically gone." Due to fan rumors that the Twins would actually be in the film, the director made a public $25,000 "bet" that the Twins would not be seen in "Dark of the Moon". However, they were briefly seen in the N.E.S.T headquarters in their vehicle modes in the film. Bay acknowledged that "Revenge of the Fallen" was "disappointing to the fans"