I originally posted a question on this FAQ regarding the editing of this film having been done by López Obrador himself.
People interested in keeping this fact from the general public reported this until it got deleted, so I will gladfully re-post the issue.
For those interested, here's the link to the article where that fact is presented:
http://www.eluniversal.com.mx/columnas/68388.html
Out of respect to this website and to your opinions I did not delete your blatantly misleading assertion. The link you provided is of a political opinion column. For those that don't understand Spanish, the aforementioned column makes several scathing and unfounded statements against diverse Mexican political personalities. It does not appear to present credible sources and thus should be regarded as opinion rather than fact.
"El Universal" is a very serious newspaper where several left wing politicians have columns. Do you think their articles are wrong too? I doubt a serious paper like "El Universal" would venture its reputation in making such a claim unless there was a strong elemen of truth backing it up.