Rachel Weisz gets tough in The Whistleblower trailer

The first trailer for The Whistleblower , starring Rachel Weisz, has landed online.

Based on true events, the film tells the story of Kathryn Bolkovac, a Nebraska policewoman who uncovered the shocking truth behind a sex-trafficking scandal in post-war Bosnia.

Coming across as a kind of anti- Erin Brockovich , this looks like it gives Oscar-winner Weisz another role to really get her teeth into.

Eschewing any sort of glamour and steering clear of histrionics, it would be a surprise if this performance didn't garner Weisz some awards heat.

Keep your eyes peeled for Sherlock star Benedict Cumberbatch, who can be spotted getting his mouth around an impressively convincing American accent.

Pairing a solid cast (Monica Bellucci, Vanessa Redgrave, David Strathairn) with a gripping real-life case, this is worth keeping a close eye on.

Check out the trailer here:

The Whistleblower doesn't currently have a UK release date, but it's scheduled to arrive in the US on 5 August 2011.

Matt Maytum is the former Editor of Total Film magazine. Over the past decade, Matt has worked in various roles for TF online and in print, including at GamesRadar+. Bucket-list-ticking career highlights have included reporting from the set of Tenet and Avengers: Infinity War, as well as covering Comic-Con, TIFF and the Sundance Film Festival.