Margot Robbie dominates Suicide Squad's leaked trailer

Margot Robbie steals the show in a leaked trailer for the upcoming movie Suicide Squad.

The trailer from David Ayer's film was seen at Comic Con over the weekend and shows Robbie imprisoned in a cage at a maximum security prison as she dangles upside down, performing gymnastics.

Robbie's character is a supervillain who will be recruited along with fellow baddies played by an all-star cast including Ben Affleck as Batman, Will Smith as Deadshot and fellow Aussie, Jai Courtney as Captain Boomerang.

Margot Robbie in a scene from the leaked Suicide Squad trailer.

In the leaked clip, it's Robbie who gets most of the screen time out of all the villains, who have been recruited by the head of a secret government agency, Amanda Waller (Viola Davis), for a black-ops mission.

"Are you the devil?" Robbie says to Davis as she looks up innocently at her from her prison cell.

Jared Leto's latest incarnation of the Joker got the most cheers at Comic Con, although his appearance in the clip was brief.

Complete with green hair and metal-capped teeth, Leto holds what looks like the handles to two electrocution devices in his hands as he looks at his victim and says: "I'm just going to hurt you, really, really badly".

Jared Leto in the Suicide Squad's leaked trailer.

In another Aussie addition, an eerie, slowed down cover-version of the Bee Gees song I Started A Joke plays as the soundtrack to the clip.

Suicide Squad is set to be released next year.

- AAP