There are few things guaranteed in the upside down, always changing world of Hollywood, but here's one thing you can bank on: a successful film, if at all possible, will get a sequel.And as the summer moves forward, "Bridesmaids" is becoming more than just a success.A big opening weekend got the speculation started, but having just passed "Sex and the City" as the highest grossing R-rated female-driven comedy of all time, there's little doubt that Universal will be hungry for another helping of the Kristen Wiig-starring, Paul Feig-directed and Judd Apatow-produced laugh factory (with names like those, was there any doubt it'd be a hit?).