Yeah Big T, Since it was filmed in Nicaragua, I have to agree with it having to be an Eyelash Viper(B. schlegeli). That is basically what it has to be from the description unless it was a "planted" snake from a totally different region.
The poster must also keep in mind that they come in a MYRIAD of different color/pattern phases too, and basically no two are identical.
~Doug

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"a snake in the grass is a GOOD thing" 
my website -Serpentine Specialties


