My favorite portrayal of prognostication was in the Nicholas Cage movie Next. Cage plays a cut rate magician in Las Vegas, but in reality he has the ability to see a few minutes into the future. The duration of how far he sees into the future varies, but mostly its a few minutes.
Cage has a considerable amount of control over the ability and can use it at will. A trait not many prognosticators have and one that they would surely envy. He's not only able to see the future, but also the directions things take if different decisions were made. For example, if he goes left one time and right the other.
It's a fast paced action film, but I thought it was done very well and shows prognosticators in a good light. I can't stand how they do prognostications in the Final Destination movies, which is funny considering that it's actually how many people have visions.
I will admit that my main problem is simply the fact that the movies are lame. The idea that some person gets a random vision and upsets death's plan and then death takes revenge was played out after the first two films. The fact it has gone on and on and on, is just annoying.