Hidden in This Picture is a one-act play by Emmy Award-winning playwright Aaron Sorkin.
They've saved filming the final and most important scene of their movie for last; a complicated outdoor sequence involving hundreds of extras portraying disillusioned marines jogging at sunset.
All is going seemingly well, until suddenly yet slowly, three cows walk directly into the shot.
This causes Robert and Jeff to question their work, their relationship, the artistic health of contemporary film-making, and the ethics of shooting cows with firearms.
The other two roles are a hard-nosed manager (Reuben) and a geeky production assistant (Craig).