Question: Were Rowland Brown and Threes Anna involved in film?

Context articles: Angels with Dirty Faces
Paul Hepker
Threes Anna
Rowland Brown
The Devil Is a Sissy
Quick Millions (1931 film)
Hell's Highway (1932 film)
The Doorway to Hell
What Price Hollywood?
The Lady's from Kentucky

Angels with Dirty Faces is a 1938 American crime film directed by Michael Curtiz for Warner Brothers.
 It stars James Cagney, Pat O'Brien, The Dead End Kids, Humphrey Bogart, Ann Sheridan, and George Bancroft.
 The screenplay was written by John Wexley and Warren Duff based on the story by Rowland Brown.
 The film chronicles the fictional rise and fall of the notorious gangster William "Rocky" Sullivan.
 After spending three years in prison for armed robbery, Rocky intends to collect $100,000 from his co-conspirator, mob lawyer Jim Frazier.
 All the while, Father Jerry Connolly tries to prevent a group of youths from falling under Rocky's influence.
Paul Hepker (b. Harare, Zimbabwe; 17 December 1967) - South African composer, musical director, pianist, best known for composing the score (with Mark Kilian) for the film Tsotsi, which won the Academy Award for Foreign Language Film at the 78th Academy Awards in 2005.
 Hepker and Kilian also wrote the score for Rendition, the Gavin Hood film starring Jake Gyllenhaal, Reese Witherspoon and Meryl Streep amongst others.
 Hepker and Kilian also co-composed the score for "The Bird Can't Fly" by Dutch director Threes Anna.
 Hepker wrote the music for the AIDs documentary "Into the Light" which featured the voice of Kenyan artist Ayub Ogada.
Threes Anna (pseudonym of Threes Schreurs, born in Vlaardingen, The Netherlands, 1959) is a novelist, theatre and film maker.
Rowland Brown (November 6, 1900 – May 6, 1963), born Chauncey Rowland Brown in Canton, Ohio, was an American screenwriter and film director, whose career as a director ended in the early 1930s after he started many more films than he finished.
 He walked out of "State's Attorney" (1932), starring John Barrymore.
 He was abruptly replaced as director of "The Scarlet Pimpernel".
 As a writer, he was credited with twenty or so films including two Academy Award nominations, one in the 11th Academy Awards for Best Original Story "Angels with Dirty Faces" and another in the 4th Academy Awards for "Doorway to Hell".
The Devil is a Sissy is a 1936 American MGM comedy-drama film directed by W.S. Van Dyke and Rowland Brown.
 The film stars Freddie Bartholomew, Jackie Cooper and Mickey Rooney, three of the biggest child stars of the 1930s.
Quick Millions is a 1931 pre-Code crime film directed by Rowland Brown.
 The film involves a truck driver (Spencer Tracy) and the wealthy woman (Marguerite Churchill) whom he covets, and also features Sally Eilers, George Raft and Leon Ames in supporting roles.
Hell's Highway is a 1932 American Pre-Code film directed by Rowland Brown.
The Doorway to Hell is a 1930 American Pre-Code crime film directed by Archie Mayo and starring Lew Ayres and James Cagney, in his second film role.
 The film was based on the story "A Handful of Clouds", written by Rowland Brown.
 The film's title was typical of the sensationalistic titles of many Pre-Code films.
 It was marketed with the tagline, "The picture Gangland defied Hollywood to make!"
What Price Hollywood?
 is a 1932 American pre-Code drama film directed by George Cukor and starring Constance Bennett with Lowell Sherman.
 The screenplay by Gene Fowler, Rowland Brown, Ben Markson, and Jane Murfin is based on a story by Adela Rogers St. Johns and Louis Stevens.
The Lady's from Kentucky is a 1939 film starring George Raft and Ellen Drew.
 The movie was written by Malcolm Stuart Boylan from a story by Rowland Brown, and was directed by Alexander Hall.
 The screenplay involves a failing bookie (Raft) who becomes half owner of a racehorse, with a Kentucky lady (Drew) owning the other half.
 ZaSu Pitts plays a supporting role.