Didn't Care for this movie at all

I'm going to disagree with you, I really liked the movie, and I don't think that the fact that there's little dialogue makes the movie drawn out or anything of that sort.
The music is not there to fill in the void, as you put it, it's actually there to tell the story along with the images, if you listen to the lyrics it all makes sense. It actually explains what's happening so dialogue is not required for you to understand the movie.
The cumbia music coming from a boom-box as the batteries are fading is not really music coming from a boom-box as the batteries are fading (the idea was born from this event, cassette boom-boxes running out of battery), it called "cumbia rebajada" (pitched down cumbia) it's a cumbia style in which the pitch is slowed down to get that effect, the subgenre was born a while ago (I don't know how many years ago, but no less than 7); you can search youtube for "cumbia rebajada".
The main character is the girl, as everything revolves around her. It's the story about a girl who ends up liking two guys and what happens between the three of them. It's not about the guy with the camera, and there's more to the movie than just the "guy with his camera", for example, they end up making cumbia videos in which the girl dances, these kind of videos happen to be very common "cumbia plays, people dance" you can buy them in markets as the one portrayed in the movie; etc, etc, etc.
I think the main thing here is that we are used to watching movies with a lot of dialogue, fast, fast, fast, cut, cut, cut, basically action not contemplation, big Hollywood movies, and all those called "commercial movies", are filled with dialogue and hold this structure in general (I'd never ever dare say they are all like that) and they are everywhere, I think that's why some people don't feel comfortable with the idea of very little or no dialogue, and less action more contemplation.
I also think that we are not used to liking/enjoying/understanding movies in which the words don't come out of the characters' mouths, but just think of it as a musical in which the characters don't move their mouths or use their voices to sing.
In my opinion it's a very fun and joyful movie and if you can take in the images and the music as a whole, and not focus on the fact that "there is no dialogue"(because I think there is, the music is the dialogue) it can be really enjoyable, not a waste of time, and a great movie.

Peace!

The kind of movie I enjoy most, not everyone gets it.
No gun battles, no car chases, 3/4 of the budget wasn't CGI.
You were either drawn in by the music and these three characters, or you weren't, it's that simple.

If you didn't get it......move on, there's a typical Hollywood movie, made for the masses, pumped out every 5 minutes.

I think the movie was good, because of the brilliant way of telling the story using songs, the great scenery, good music (accordion! who would have guessed?), and overall luminous, happy atmosphere.

I didn't like:
1/ the quasi-violent parts where the girl argues, quite strongly with her first boyfriend, these scenes seemed too heavy, maybe because the author didn't take the time to build the tension, and decided to use violence instead. There were a few instances were the actor's play was artificial, pompous, which was a bad contrast with their age and the overall sunny, happy atmosphere of the movie.

2/ the graphical sex scenes - closer to soft porn than to an artsy movie; I agree with somebody's comment that the girl could have played these scenes better - she seemed too detached, sex was a mere mechanical exercise. Unfortunately, I think that more aspiring artists will follow the path of more explicit sex scenes in the future, as porn is going mainstream in society. The movie would have been much better if the sex scenes would have been cut earlier - or less descriptive - remember the shot where the camera moves along the couple's legs - cut the scene there before the full nudity scene and you have a winner.

Despite all the above, I would recommend the movie, it's fresh, and the music is awesome. Probably an R rated version, would be ideal...

I didnt have an opinion until watching her do that little dance. Simple, sweet, cute and kind of funny

I have to say the movie was awful, the main characters had no substance, Cori was just a low class ,trashy broad who could not dance to save her life!

The music was awful and yes I can offer my opinion because I have been to this particular part of Mex & I am a cumbia lover. The music could have been so much better , I know it was put in place to tell a story but it just seemed so sloppy.

The "Cholita" story was just as sloppy and hard to watch. I held on hoping it would get better . The only thing that kept me beleiveing it was going to get better was the shot of the Amorres Perros poster in Netos joint.

Bottom line good concept, bad movie!