 There are some notable exceptions, such as the alien-initiated first-contact scenarios in "The Day the Earth Stood Still" (1951), "" (1996) and "Arrival" (2016).A trope of the peaceful first-contact is humanity attaining a key technological threshold (e.g.nuclear weapons and space travel in "The Day the Earth Stood Still" or faster-than-light travel in "First Contact"), justifying their initiation into a broader community of intelligent species.