Debbie Moon at 2013-04-16 12:30:34:
Okay, here goes...
A prissy female journalist is preparing an article on how her grandmother was the perfect American: a down-home mom and grandma, polite, kind, and old-fashioned.
Grandma dies, the saddened journalist submits the article for next week's magazine -
But at the reading of the will, a statement from Grandma is read out confessing to all the mischievous things she did - robbed a bank, smoked dope at Woodstock, had an affair with a man who then became President, etc.
To save that article and her reputation, the journalist has three days to cross America destroying evidence and swearing witnesses to silence.
On the way, of course, she learns lessons about living life to the full, the lessons she can now see Grandma was always trying to teach her...
In keeping with the current crop of sweary, eye-catching titles, how about Grandma F*cked The President? (Too much? Yeah, maybe.)