Complex sentence: The series began in 2014 with the release of "John Wick", which was written by Derek Kolstad, produced by Basil Iwanyk and followed by the sequel', which was released in 2017.
Split into simpler sentences: The series began in 2014 with the release of "John Wick", which was written by Derek Kolstad and produced by Basil Iwanyk. It was followed by the sequel', which was released in 2017.