Robert Downey Sr. and Paul Thomas Anderson have been close friends for years. (You can see Downey in a memorable cameo as a record producer in Anderson’s 1997 film Boogie Nights.) Last month, the two directors came to the Criterion Collection offices to have a casual conversation about the making of the films in the Eclipse set Up All Night with Robert Downey Sr. In this first of four episodes, they discuss Downey’s debut, the political satire Babo 73. We’ll post the remaining parts of their conversation once a week, so keep checking back.