maybe, or both the cables snapped from the release mechanism. If you think it's fabric caught, then gently try and pry up on trunk lid while releasing w/ remote or from door as that should work. If it's both cables snapping at once, it's going to be painful ($$) to have the dealer get in there.
Depending on MY, there is an emergency rear trunk release behind the bumper. Here are some links I hope can help.