You won't get much an idea of the story from the trailer, but that's maybe not such a bad thing when there will be so many twists and turns to enjoy in the movie proper. I'll remind you that it's about the true story of the Abscam sting, however. That seems fair.
But let's not worry about the plot right now and just kick back and enjoy the hairstyles, fashions, accents and cast. And what a cast it is.
UPDATE: And now this same player is sharing not just the trailer but also more footage and Rusell himself filling out some details of the movie, so you will get that plot info after all.
American Hustle will be released this December in the US, which likely translates into January through March in the UK.