Pain & Gain clip and poster (Exclusive)

You don't mess with Mark Wahlberg, and that includes kids too... actually, that especially includes kids.

In this exclusive clip from Michael Bay's muscle-bound crime caper 'Pain & Gain', we see Wahlberg's ex-con Daniel Lugo sort the girls from the boys on the basketball court.

And the general advice appears to be... lock up your mothers.

[First look: Pain & Gain trailer]

Revolving around the sweaty environs of a Florida gym, and based a true story, Lugo hooks up with steroid-addled trainer Adrian Doorbal (Anthony Mackie) and Paul Doyle, (Dwayne Johnson) a coke-addicted, recently-released convict who has found god, to extort Victor Kershaw (Tony Shalhoub) who they suspect to be a crook.

What could possibly go wrong?

Well, more or less everything as it goes, as an initial kidnapping turns into a mess of murder, sex toys, impotence, tasers and dismemberment.

It's not for the faint-hearted, but then, this is Michael Bay we're talking about.

We've also got an exclusive poster for the film. To describe it in a word?

Vests...

'Pain & Gain' is released in the UK on August 30.