Deadpool 2's title in production was "Untitled Deadpool Sequel" and like... what kind of coward decision was it for that to not just be the final title of the movie

this reminds me of my incredible disappointment that the lego movie 2 wasn't instead called the second lego movie

honestly it surprises me they didn't use a code name

As far as I know Infinity War was "Mary Lou" - not sure about Endgame.

I think there's a difference between the code name used for the actual production, and the placeholder name used to talk about the movie for publicity/scheduling before the title is announced.