 Early drafts of the script had Alice encounter the Jabberwock (to  have been voiced by Stan Freberg (qv)), from  Lewis Carroll (qv)s poem "Jabberwocky". The sequence was  rejected, either because it slowed the story down, or because of  concerns that it would be too frightening. Elements of "Jabberwocky"  remain in the film, however: the Cheshire Cats song "Twas Brillig",  consisting of the opening stanza; and the Tulgey Wood sequence,  which includes at least one of the creatures mentioned in the poem,  the Mome Raths.