10. Tron (1982)
Tron is arguably the archetype for video-game films. It started life in 1976 when director Steven Lisberger became obsessed with Pong, but wouldnt make the big screen for six more years until Disney agreed to take up the project. What now seems a tired idea was, at the time, an entirely new concept. The plot focuses on software engineer Kevin Flyn as he is inadvertently digitised into his own game, discovering its a sprawling dystopia controlled by a Master Control Programme (an early AI) that pits lesser programmes to play game against the Users. Flyn befriends a small group of rebellious programmes and together they escape the mainframe and bring the MCP down. Despite being packed with early gaming jargon that now seems hideously out of date and filled with crude CGI designed to transform the state of the art games into fully realised 3d models, its a beautiful film to re-watch and it remains a much loved classic.