Earthbound (2012)

At eleven years old Joe Norman is told by his dying father that he is an alien hiding on earth Joe believes him He grows up to be a diehard fanboy working in a comic shop When he falls for downtoearth Maria a fellow scifi fan he is inspired to lead a more normal social existence Until intergalactic bounty hunters track Joe down at his new office and the couple soon learn the dangerous truth about who Joe really is