No, Elon Musk did not appear in the movie "Transcendence." The film, released in 2014, stars Johnny Depp as a scientist who uploads his consciousness into a computer. While Musk is known for his interest in technology and artificial intelligence, he does not have a role or cameo in this particular film. The movie explores themes of AI, technology, and the implications of consciousness transfer, which align with Musk's interests, but he is not part of the cast.

"Transcendence" is a 2014 science fiction film directed by Wally Pfister, starring Johnny Depp as Dr. Will Caster, a leading researcher in artificial intelligence. After being fatally wounded by anti-technology extremists, he uploads his consciousness into a superintelligent AI system. As Will’s power grows, he seeks to transcend human limitations, but this raises ethical concerns and poses a threat to humanity. The film explores themes of technology, consciousness, and the potential consequences of merging human intellect with artificial intelligence.

As of now, there is no "Transcendence 2." The original film, released in 2014 and starring Johnny Depp, did not perform well at the box office and received mixed reviews from critics. There have been no official announcements regarding a sequel, and the film's themes of artificial intelligence and consciousness have not prompted discussions for a follow-up project. Therefore, fans of "Transcendence" will need to look elsewhere for similar content, as a sequel is not currently in development.

No, Christopher Nolan was not involved in "Transcendence." The film, released in 2014, was directed by Wally Pfister, who is known for his cinematography work on Nolan's films. "Transcendence" features Johnny Depp, Rebecca Hall, and Morgan Freeman, and it explores themes of artificial intelligence and the merging of technology with consciousness. While Pfister and Nolan have collaborated in the past, they are distinct filmmakers with separate projects.