Melissa McCarthy is on the move with her badass grandmother (played by Susan Sarandon) in the summer comedy Tammy. The Bridesmaids star throws inhibition to the wind after she figures out her husband is creeping behind her back and she's been fired from her gig at the local burger joint. The laughs flow in the new trailer, where Tammy does her best stickup kid impersonation and robs her old job with a paper bag ski mask and a fake gun. Of course no fast food robbery is complete without a couple apple pies to go. Tammy will hit theaters July 2, but for now get your chuckle on by watching the teaser above.