Never heard of it, but looked it up. I thought it'd just be unknowns, but it has a surprisingly extensive cast of presumably down-on-their-luck name actors.
This review makes it sound like it may have crossed over from being merely mundane-bad to trainwreck-bad.
http://influxmagazine.com/highway-to-hell-aka-eldorado-3d/
found the link about the tax fraud:
http://deadline.com/2013/06/british-...dorado-514553/
Almost makes me wonder if they
actually filmed in 3-D, or just submitted falsified invoices claiming they had to make a bogus tax claim?