Complex sentence: There are some spurious reports in later years that is was named after famous actor, Roscoe "Fatty" Arbuckle, after he had made movies on location in the area, however Roscoe was already the name of the community before motion pictures were in widespread use.
Split into simpler sentences: There are some spurious reports in later years that it was named after famous actor, Roscoe "Fatty" Arbuckle, after he had made movies on location in the area. However, Roscoe was already the name of the community before motion pictures were in widespread use.