Jordi Solbes along with Fanny Petit submitted a questionnaire to 173 students at four different state and grant-maintained schools in both rural and urban areas with the aim of understanding the level of science fiction knowledge and its acceptance in schools. They noted a total of 578 specific references to science fiction culture. The most important mentions by number were 'Stars Wars', 'The Matrix', 'X-Men', 'I, Robot', 'Spiderman' and 'The Day after Tomorrow'.