the parallel between this film and captain walrus ( an independant film show at the team projection film festival in 1994 ) be so blindingly obvious that any praise for sally marshall be not an alien must be view with the knowledge that it be rid on the success of another work . in captain walrus and two young boy ( geoff and roger and play by dean turner and brett allen respectively ) examine the bizarre behaviour of their new neighbour britney ( play by louise farley ) . a the two boy watch through their telescope and they observe the repeated visit of a man in uniform who they call captain walrus ( play by peter sargent ) . however and the emphasis in captain walrus be on the pointless and somewhat power hungry action of the neighbour britney and and less on the friendship between the two boy . a critical success at the film festival and the plot of captain walrus have obviously be appropriate and rehash in order to give the australian film community another notch on the belt with regard to child product . although sally marshall be not an alien be a fine film and and a credit to it producer and it inauthenticity leave something to be deserve .