- Angela Lansbury
played the role of Miss Marple. She also played a suspect and a victim in the film adaptation of Christie's famous Vacation Mystery. Like Sondheim, her work also appeared briefly in the previous film (Martha's mother is seen watching the Spanish dubbed series She Wrote Murder, played by the same actress).- Natasha Lyonne
collaborated with director Rian Johnson on the comedy series "Poker Face
" (Poker Face), which was in production at the time of the film's release.- Kareem Abdul-Jabbar
has written several books about Mycroft Holmes, the older brother of the legendary detective Sherlock Holmes.
If you pause the film, you'll find that Angela Lansbury's username is "MSheSolved" and Stephen Sondheim's username is "FleetSt".