Picando alante

During the tail end of the Trujillo Alto ranch sequence, Vivian 'El látigo', the character played by Lucienne Hernández, lights a $100 dollar bill on fire. The text on the bill can be clearly seen: 'Motion Picture Money'. It would be easy to interpret this as a gaffe by the production team. However, this film was made by a theater group, and the screenplay for this film was originally intended for theater performance, so it seems to have been an intentional decision.