Mark Gatiss: A Study in Sherlock

About Mark Gatiss: A Study in Sherlock

Mark Gatiss, who co-created "Sherlock" and plays Mycroft Holmes, discusses the show with Benedict Cumberbatch, Martin Freeman, and others in the cast.

Mark Gatiss: A Study in Sherlock is a 2016 documentary film directed by Nathan Landeg.

Mark Gatiss appears as Himself, Benedict Cumberbatch as Himself, Martin Freeman as Himself, and Una Stubbs as Herself. It runs 28 minutes and was released in January 2016.