Bradley Cooper unveiled the first trailer to his new film A Star Is Born at CinemaCon and it went down a storm.

The Silver Linings Playbook actor makes his directorial debut with the remake, in which he stars alongside singing superstar Lady Gaga in her first feature film role.

The trailer features Gaga singing as well as a duet featuring Cooper, who said at CinemaCon that Gaga insisted on them both singing live.

"She said what she can't stand in movies is when it's playback and they are lip-syncing," he said before debuting the new trailer.

The original 1937 A Star Has Born starred Janet Gaynor and Fredric March. It was first remade in 1954 with Judy Garland and James Mason and again in 1976 with Barbra Streisand and Kris Kristofferson in the leading roles.

In Cooper's take, he plays an alcoholic country music singer Jackson Maine who discovers an unknown talent Ally (Gaga). As her career quickly takes off, Jackson starts to realise that his best days may be behind him.

The four-time Oscar nominee has spent three years working on the project with Warner Bros. productions.

"It’s a big swing this movie, I totally get that," Cooper said. "But you can’t control what moves you. And I always wanted to tell a love story."

He added that Lady Gaga is "kind of a revelation in this movie".

The singer previously said she was "elated" to be working with Cooper, describing him as a "brilliant visionary artist".

The film is due to hit cinemas on October 5.