Warner Bros.

Bradley Cooper's directorial debut, "A Star is Born" is wowing them at the Toronto International Film Festival, with critics predicting awards aplenty for him and costar Lady Gaga.

The movie doesn't open until October  5, but in the meantime, savor these four new clips.

In the second clip, Ally (Gaga) makes up an impromptu song about country superstar Jackson Maine (Cooper) and sings it to him A cappella. He's impressed, and so are we.

Clip #3 showcases a live performance from Jackson and some words of advice from Sam Elliott, who plays his older brother(!) and mentor-slash-manager.

In Clip #4, Jackson's BFF Noodles (Dave Chappelle), a former musician who's there to help Jackson out at a low point.

According to a recent poll of movie fans, "A Star is Born" is one of the most anticipated films this fall.

Expect it to do big box office, as well as be a major awards contender.