I've got a pretty high tolerance level when it comes to 1970s and 1980s trashy "taquilla" movies. I like them as social documents. I enjoy them for their trashiness and disposability. I love the way the same faces always turn up playing the same characters over and over again. But this movie made me realise that there has to be a bit more than this, just a bit, to really keep the interest.The plot is wafer thin. Our two lovable rogues flee Mexico City and wind up in Monterrey. There they get caught up in a union dispute, find jobs, get caught by their pursuers and generally ape around. If that sounds pretty bland, then I made a good job of summarizing the movie.Nothing much happens of interest and there's not enough spark to keep anyone watching for long. Not terrible, but not really worth the time to watch.