Here’s “Brazzaville Teen-Ager,†a brand new short film starring, directed, and co-written by Michael Cera and based on the story of the same name by Bruce Jay Friedman. YouTube channel JASH released the short yesterday, which follows a young man trying to save his father (Charles Grodin) from death by getting his grumpy boss (Jack O’Connell) to sing back-up vocals on a Kelis song. Michael Cera’s directorial career starts here.