The Blood and Ice Cream Trilogy (also known as The Three Flavours Cornetto Trilogy) is a trio of films directed by Edgar Wright and Simon Pegg. It stars Simon and Nick Frost. Currently, three films have been released, Shaun of the Dead in 2004, and Hot Fuzz in 2007. The third and final film, The World's End was released in 2013.
Shaun of the Dead Red = The color of blood
Hot Fuzz Blue = Homage to police colors
The World's End Green = A general color of aliens is green