The Adventure of Sherlock Holmes' Smarter Brother 1975 The Adventure of Sherlock Holmes' Smarter Brother is a 1975 American musical comedy film with Gene Wilder, Marty Feldman, Madeline Kahn, Dom DeLuise, Roy Kinnear and Leo McKern The film was Wilder's directorial debut, from his own original script. Wilder was having lunch with producer Roth when it was suggested that Wilder spoof Sherlock Holmes.The story goes Roth approached Wilder and inquired if Wilder had given any more thought to the ide