Where Is This Lady?
 is a 1932 British musical film directed by Victor Hanbury and Ladislao Vajda and starring Mártha Eggerth, Owen Nares and Wendy Barrie.
 It was made at Elstree Studios.
 An operetta film, it is a remake of the German film "Once There Was a Waltz" which was adapted from a stage work by Franz Lehár.
The Beggar Student is a 1931 British operetta film directed by Victor Hanbury and John Harvel and starring Shirley Dale, Lance Fairfax and Jerry Verno.
 It was based on the 1882 operetta "The Beggar Student" composed by Carl Millöcker.
 A separate German film was made the same year.
Hotel Reserve is a 1944 spy film starring James Mason as an innocent man caught up in pre-Second World War espionage.
 It was based on Eric Ambler's novel "Epitaph for a Spy".
 Unusually, it was both directed and produced by a trio: Lance Comfort, Mutz Greenbaum (credited as Max Greene) and Victor Hanbury.
Dick Turpin is a 1933 British historical drama film directed by Victor Hanbury and John Stafford it starred Victor McLaglen, Jane Carr, Frank Vosper, James Finlayson and Cecil Humphreys.
 The film depicts the adventures of the eighteenth century highwayman Dick Turpin and his legendary ride to York.
 It is based on a historical novel by Harrison Ainsworth.
Victor Hanbury or W. Victor Hanbury (1897 – 14 December 1954) was a British film director and producer.
There Goes Susie is a 1934 British comedy film directed by Victor Hanbury and John Stafford and based on a story by Charlie Roellinghoff and Hans Jacoby.
 It was made by British International Pictures at Elstree Studios.
 It is a remake of the 1933 German film "Marion, That's Not Nice".
 A separate Italian version "Model Wanted" was also made.
The Sleeping Tiger is a 1954 film noir starring Alexis Smith and Dirk Bogarde.
 It was Joseph Losey's first British feature, which he directed under the pseudonym of Victor Hanbury due to being blacklisted in the McCarthy Era.
Escape to Danger is a 1943 British thriller film directed by Lance Comfort and Victor Hanbury and starring Eric Portman, Ann Dvorak and Karel Stepanek.
Sinister is a 2012 supernatural horror film directed by Scott Derrickson and written by Derrickson and C. Robert Cargill.
 It stars Ethan Hawke as fictional true-crime writer Ellison Oswalt who discovers a box of home movies in his attic that puts his family in danger.
Scott Derrickson (born July 16, 1966) is an American director, screenwriter and producer.
 He lives in Los Angeles, California.
 He is best known for directing horror films such as "Sinister", "The Exorcism of Emily Rose", and "Deliver Us From Evil", as well as the 2016 Marvel Cinematic Universe installment, "Doctor Strange."

Question: Are Scott Derrickson and Victor Hanbury both directors and producers?
Answer: yes