It's been six years since the unexpected passing of Philip Seymour Hoffman. Although we will never see a new performance from the celebrated actor, we are now able to see one of his final performances which has previously gone unseen. On Friday, director/writer/actor John Cameron Mitchell released the previously unaired pilot for Showtime's Happyish which originally starred Hoffman. Mitchell announced the release of the unaired pilot on Instagram. Filmed just three months before Hoffman's passing in February 2014, the Mitchell-directed pilot has never seen the light of day. In his Instagram announcement, Mitchell explained, "…