Which film series is based on the novels of J.R.R. Tolkien?

Who wrote the novel on which 'The Hunger Games' films are based? Who wrote the novels on which the 'Twilight' films are based? Who wrote the novel on which Steven Spielberg's 'Ready Player One' (2018) was based? Who wrote the novel on which 'The Martian' (2015) was based? Which film series is based on the novels of C.S. Lewis? What is the name of the killer in the 'Halloween' film series? What is the name of the killer in the 'Friday the 13th' film series? What is the name of the killer in 'A Nightmare on Elm Street'?