Although it leaves important parts of the novel out -for budgetary reasons, I suppose-, what is in the film is all in the book, and to me it depicts the innocence and charm of Twain's children's world better than any other film adaptation has ever done. The Technicolor cinematography is absolutely fantastic, as well as the art direction. And the child actors are natural-born players, they are all perfect. And then we have dear old toothless Walter Brennan, one of my favourite American character actors and the first person ever to win three Academy Awards (1936, 1938 and 1940) as Muff Potter, the town drunk, a role he was born to play. David O'Selznick put the dollars in, and this film surely was a rehearsal for GWTW. And Norman Taurog, a director well experienced on working with children (Skippy, Huckleberry Finn, Boy's Town) at the helm. They made a film that will last forever.