Question: Harry Brown starred what English actor who was born in Derby and trained at the Central Junior Television Workshop?

Context paragraphs:
Joe E. Brown: Joe E. Brown (July 28, 1891 – July 6, 1973) was an American actor and comedian, remembered for his amiable screen persona, comic timing, and enormous elastic-mouth smile.  He was one of the most popular American comedians in the 1930s and 1940s, with successful films like "A Midsummer Night's Dream", "Earthworm Tractors", and "Alibi Ike".  In his later career Brown starred in "Some Like It Hot" (1959), as Osgood Fielding III, in which he utters the famous punchline, "Well, nobody's perfect."

Jack O'Connell (actor): Jack O'Connell (born 1 August 1990) is an English actor.  Born and brought up in Derby, he trained in acting at the Central Junior Television Workshop in nearby Nottingham, which led to roles in film, television, and theatre.  His film debut as a teenaged skinhead, in the coming-of-age drama "This Is England" (2006), heralded his propensity for playing angry, troubled youth.

Harry Brown (film): Harry Brown is a 2009 British vigilante action-thriller film directed by Daniel Barber and starring Sir Michael Caine, Emily Mortimer, Jack O'Connell, and Liam Cunningham.  The story follows Harry Brown, a widowed Royal Marines veteran who had served in Northern Ireland during The Troubles, living on a London housing estate that is rapidly descending into youth crime.  After a violent gang murders his friend, Harry decides to take justice into his own hands.

Michelle Bonnard: Michelle Bonnard is an English actress and screenwriter.  She attended the Central Junior Television Workshop before studying at LAMDA.

Harriet Cains: Harriet Cains trained as an actress at the drama club "Circle Up" for three years.  Cains later trained in "The Television Workshop", during which she was cast in short films roles, as well as "Hollyoaks Later".  During her time in the Television Workshop, Cains became aware of auditions for the British TV series "In the Flesh".  She auditioned in Manchester and was cast as Jem Walker.  To prepare for the role, Cains watched documentaries about post-traumatic stress disorder and anxiety, while also talking with people who had experienced these illnesses.  She wanted to portray them in a realistic way.

Perry Fitzpatrick: Perry Fitzpatrick is an English actor.  He first became known as Flip in the television series "This Is England".  He attended The Nottingham Television Workshop and was trained by Ian Smith.

Birmingham Youth Theatre: The Birmingham Youth Theatre was founded in 1971 in Birmingham, England by local teachers Derek Nicholls and Ray Speakman, and was based at the Midlands Arts Centre and Birmingham Repertory Theatre.  From 1984 it was also run by teacher and director Malcolm Cleland, who also ran the Central Junior Television Workshop in Birmingham.

Luke Gell: Luke Martin Gell (born 20 January 1987 in Nottingham) is an English actor.  He was educated at The Kings School in Nottingham and trained at Central Independent Television's Television Workshop.  He has been described as a "young Peter Kay" and is most well known for the role of Tim in the BBC Three sitcom, "Two Pints of Lager and a Packet of Crisps" from 2008 to the show's end in 2011.

Central Junior Television Workshop: The Television Workshop, formerly known as the Central Junior Television Workshop is a British organisation that offers training for young people in performance skills for television, film, radio and theatre.  Open to anybody between the ages of seven and 21, entry is by an annual audition process which is held each spring.

James Hooton: James Hooton is an English actor best known for his role as Sam Dingle on the popular ITV1 soap "Emmerdale" who he has played since 1995.  He started his career with the Carlton Junior Television Workshop.

Supporting paragraphs: Harry Brown (film) Jack O'Connell (actor)
Answer: Jack O'Connell