I would slightly disagree with BEP. He is right that a qualification won't get you the job.
HOWEVER, it is all about helping to "open the door slightly more" to get you that interview.
A qualification such as PRINCE2 will not get you the job, but it will help your application that little bit more.
You will still need very very good academic grades, a good degree from a great University, lots of outside Uni activities etc to have a chance.
In short, the PM qual is not going to hurt your app, but neither will it mean certain interviews