Conversation so far:
What is killswitch?
Killswitch, a film.
What is the film about?
two young hacktivists, Swartz and Snowden, who symbolize the disruptive and dynamic nature of the Internet.
What happens in the film?
The film reveals the emotional bond between Lessig and Swartz, and how it was Swartz (the mentee) that challenged Lessig.
Was the film popular?
CANNOTANSWER.
What else is interesting about the film?
Congressman Grayson states that Killswitch is "One of the most honest accounts of the battle to control the Internet -- and access to information itself.".

Question: What other reviews were there?
Self-contained rewrite: What other reviews were there about killswitch other than Congressman Grayson;s?