Update 11/7/2018: /Film has reported that the Breaking Bad film will follow Aaron Paul’s Jesse Pinkman and will be “a sequel set after the series finale” that aired in 2013.
Additionally, via TheWrap, Bryan Cranston confirmed that the Breaking Bad film is in production on The Dan Patrick Show.
Although he hasn’t read the script, he would “absolutely” do it and be a part of the movie if creator Vince Gilligan asked him to.
Source: IGN.com Breaking Bad Film Will Be a Sequel to the Series Finale