Peter Jackson? If so, no. District 9 came out years after LOTR and Peter Jackson only produced it. The advertising however splashed his name all over the movie to try to associate it with LoTR so that more people would go and see it. "From the Director of a few car and shoe commercials, plus a couple of indie short films you definitely haven't seen" doesn't really have the same ring.
Fun fact. District 9 was born out of a failed attempt by Peter Jackson to make a Halo movie. Due to financing troubles the Halo movie ended being put on hold, but since they already had a team and all these sets in place they decided to use that to make a cheaper and quicker movie instead, and so District 9 was born.