The Seven-Per-Cent Solution (1976)

To treat his friend's cocaine induced delusions, Watson lures Sherlock Holmes to Sigmund Freud.

Director: Herbert Ross

Cast: Alan Arkin, Vanessa Redgrave, Robert Duvall, Nicol Williamson, Laurence Olivier, Joel Grey, Samantha Eggar, Jeremy Kemp, Charles Gray, Régine, Georgia Brown, Anna Quayle, Jill Townsend, John Bird, Alison Leggatt, Frederick Jaeger, Erik Chitty, Jack May