There is no clear information about jon stewart or olivia munn in the provided headlines from other outlets, as they appear to be about unrelated topics, including a film adaptation of a sega title and joe rogan's comments on a kevin hart roast. The initial headline suggests jon stewart and olivia munn are involved in a project related to colbert's last episode, but this is not supported by the other headlines. The available information does not provide a clear understanding of the situation.