The film poster aims to appeal to a target audience of young people and adults. It shows a diverse group of teenagers in clothing typical of youth culture standing in front of a sci-fi backdrop. Adults are also included to broaden the audience. The poster is designed to attract viewers to cinemas and online by featuring the genre in an appealing visual style through images of spaceships and a tagline combining sci-fi and real world elements. It aims to draw in different demographics by including people of various ethnicities in relatable poses against the backdrop of iconic London locations.