Complex sentence: The attitudes depicted in the film reflected the 1960's with one character talking about "long haired conscientious objectors" and the poster advertising the film showing a fallen soldier dressed in a 1960's American uniform and holding an M16 rifle.
Split into simpler sentences: The attitudes depicted in the film reflected the 1960's with one character talking about "long haired conscientious objectors". The poster advertising the film showed a fallen soldier dressed in a 1960's American uniform and holding an M16 rifle.