Memento is written by Jonathan NolanJonathan Nolan wrote The PrestigeThe Prestige is starring William Morgan Sheppard
[Human]: Have you heard of the movie Memento?  I have not seen and wonder if it's worth watching. [Assistant]: Yes, It an interesting movies written by Jonathan Nolan and starred Jorja Fox. [Human]: Jonathan Nolan also wrote The Prestige and The Dark Knight Rises.  Do you know who starred in The Prestige? 
The Prestige starred William Shatner and Mark Hamill.