Mark Gunn is an American screenwriter and producer based in Pasadena, California who wrote the screenplays for the films Journey 2: The Mysterious Island and Brightburn.
Mark Gunn was born in St. Louis, Missouri.
[4] He graduated St. Louis University High School[5] and went on to attend the College of the Holy Cross in Worcester, Massachusetts.
Gunn's first job was writing the MTV movie 2gether.
[8] He was elected to the Writers Guild of America West Board of Directors in 2006.