Director David Fincher (The Social Network, Girl with the Dragon Tattoo) said that a pissed off Robert Downey Jr. would leave jars of pee around the set of Zodiac (2007)in protest of the long hours. Guess RDJ takes being “pissed” literally. Apparently the director’s use of digital cameras left less time for breaks, which infuriated the actor.
Fincher revealed this in Keanu Reeves’ documentary on filmmaking called Side By Side. Along with Fincher, Keanu interviewed star directors like Christopher Nolan, James Cameron, Martin Scorsese and George Lucas, which Keanu admitted to often having to beg for.