from www.tmz.com – Shauna Sand’s sex tape partner knows a lot in the French department, but no parlez-vous Anglais … so he’s suing the biggest porn company in the world.

Antoine Berlier claims in a new lawsuit Vivid Entertainment screwed him out of massive profits from his video with Shauna — whom he refers to as “a prominent American sex symbol.”

And in the self-aggrandizement department, Berlier claims he was of “enormous value” to Vivid, and not only because of “natural attributes.”

Bottom line … Berlier says no one translated all the legal docs and he didn’t sign a valid release.

Vivid honcho Steve Hirsch tells TMZ, “We have a signed, model release and this footage will continue to be sold.” Hirsch also says Berlier knew what he was signing and Vivid has the video to prove it — of course.