Avatar: The Way of Water Runtime Clocks in at 3 Hours, 10 Minutes: Report Avatar: The Way of Water reportedly clocks in at 3 hours and 10 minutes. As per The Hollywood Reporter, the CGI-heavy sequel to James Cameron’s Avatar has a lengthy runtime, albeit not as much as his 1997 film, Titanic. There is no official word from 20th Century Studios, but the report aligns with Cameron’s statements from an earlier interview, saying, “I don...