Biocyte is the company developing the Chimera virus in Mission: Impossible 2.
Chimera is a genetically engineered virus created by Biocyte, while Bellerophon is the corresponding treatment intended to cure infected people. Ethan Hunt is sent to recover the virus and prevent former IMF agent Sean Ambrose from exploiting it.
The company name is easy to confuse with the names of the virus and antidote. Chimera is the biological threat, Bellerophon is the cure, and Biocyte is the organization associated with their development. Mission: Impossible 2 was released in 2000 and directed by John Woo, with much of its story involving Sydney and Australia.