求救,英文句式結構問題

下面2句句子都正確
This film,shot over several months,offers its audience a glimpse.

This robot,nicknamed Tom, has been developed by two scientists
理論上,豆號沒有 and的意思,為什麼可用2個動詞。 這到底是什麼句式結構?
謝謝
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