Question: Thomas Rickman is an American film director and screenwriter known for a biographical film which tells the story of what country music singer? 
Sentence (from "Brad Hawkins"): Brad Hawkins (born January 13, 1976) is an American actor, country singer, and martial artist, best known for playing Ryan Steele in Saban's action adventure science fantasy series "VR Troopers" (1994–1996, and with 92 total episode appearances) and for his role in the 2014 film "Boyhood".
Relevant evidence: No