Complex sentence: The song is performed as a conversation between Bert, the chiminey sweep (Dick Van Dyke) and George Banks (David Tomlinson) is operatic in nature, sung dialogue, and was highly unusual for a musical film of that era.
Split into simpler sentences: The song is performed as a conversation between Bert, the chiminey sweep (Dick Van Dyke) and George Banks (David Tomlinson). It is operatic in nature, sung dialogue, and was highly unusual for a musical film of that era.