This movie contains four Game of Thrones (2011) cast members, including Roger Allam, Tim McInnerny, Sebastian Croft, and Sir John Standing.
Roger Allam and Sir John Standing appeared in V for Vendetta (2005) and Game of Thrones (2011). The former also featured Stephen Fry, who wrote the novel upon which this film was based.
The incident of Ted shouting at the theater is dramatized in this film, but is only ever alluded to in the source novel. The narrative begins immediately after he gets sacked for it.
Tim McInerney (Oliver) previously costarred on 'Blackadder' with Stephen Fry, author of the novel on which the movie is based.