72%User score 72 percent
Avatar: The Deep Dive - A Special Edition of 20/20
2022 · Documentary
User Score
6 votes
Focuses on two subjects in particular: Rob Niosi, who has spent many years building a full-scale replica of the prop from the 1960 film The Time Machine, and physicist Ronald L. Mallett, who has dedicated his life to researching the scientific possibility of time travel.
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