Complex sentence: In the 1996 film, his violin is an actual violin, and his career is the most like the novel, next to the Glowworm; as all the other careers of the insects are vastly different.
Split into simpler sentences: In the 1996 film, his violin is an actual violin however. His career is the most like the novel next to the Glowworm, as all the other careers of the insects are vastly different.