The Adventures of Sherlock Holmes' Smarter Brother is a goofy farce loosely based on Arthur Conan Doyle's immortal Victorian detective from first-time writer/director Gene Wilder ("The Producers"). Wilder plays Sigerson Holmes, the resentful younger brother of the infamous detective Sherlock Holmes (Douglas Wilmer). When Sherlock Holmes and Dr. Watson (Thorley Walters) turn down a case, Sigerson finally has his chance to finally step out of his big brother's shadow, except he lacks some of his brother's genius for solving crimes. This off-beat comedy reunites Wilder with his "Young Frankenstein" co-stars Madeline Kahn and Marty Feldman as his not-so-able helpmates in solving the crime. This comic trio brings the same physical slapstick and razor-sharp comic timing they shared in the Mel Brooks' comedy classics. The delightful Dom DeLuise also makes a marvelously madcap cameo as opera singer, Eduardo Gambetti. This underrated 1975 comedy about the perils and peculiarities of sibling rivalry will leave you smiling.