How effective is the  NLP Reverse Movie Technique in dealing with traumatic experiences? The Reverse Movie Technique (also konwn as The NLP Fast Phobia/Trauma Cure)  is named as such because it involves playing a traumatic event backwards through your head.


Is the technique effective at dealing with traumatic events?
In particular, is it more effective than playing the event forward through your head?
The Reverse Movie Technique (RMT) is a particular form of what is sometimes called exposure therapy, or prolonged exposure therapy or imaginal exposure therapy. It seems like "Reverse Memory Technique" is a niche term that isn't used in the scientific literature (e.g., 0 hits on Google Scholar). So, if you are wanting to get a scientific answer to your question, I'd check out the literature on "imaginal exposure therapy" (195 hits at time of posting) or imaginal exposure therapy without quotations.

More generally, there are a few links in the Wikipedia PTSD article to evaluations of psychotherapeutic interventions. 

To take one example of evaluation research, Taylor et al (2003) compared the efficacy of exposure therapy, EMDR and relaxation training on 60 participants with long term PTSD. They found all three techniques were effective when comparing pre- and post- intervention scores, although for some symptoms (i.e., reexperiencing and avoidance symptoms) exposure therapy was more effective.
You might also find the literature review in the article useful.

References


Taylor, S., Thordarson, D., Maxfield, L., Fedoroff, I., Lovell, K., and
Ogrodniczuk, J. (2003). Comparative efficacy, speed, and adverse effects
of three ptsd treatments: Exposure therapy, emdr, and relaxation
training. Journal of Consulting and Clinical Psychology, 71(2):330.
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Note that this is not my area of expertise, so anyone reading this, don't see it as clinical advice.