And now we've got our hands on a brand new sneak peek trailer and movie poster.
The hot-off-the-press ad sees queens of cool Kristen and Dakota stage a smouldering pose complete with retro aviators and rock chick guitar.
The pair play rockers Joan Jett and Cherie Currie in the hot new coming of age biopic, based on the famous seventies rock band.
But although our favourite Twilight fashionistas dazzled at the US premiere last month, we still have a little while to wait before we can see it for ourselves.
The Runaways hits UK cinemas on September 10.
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WATCH Kristen and Dakota rock out in The Runaways trailer
Will you be first in line to see Kristen and Dakota's latest flick? Let us know in the comments box below.