I went to see The Bourne Ultimatum the other night and have to say it wasn't that bad. I liked the previous two, but was a bit nervous that the story was going to be a bit repetitive. Surprisingly enough it wasn't, and they were able to tie in old characters and plots while still giving new details to the current story. I don't think there will be a fourth, because the movie ended with enough closure. Plus, they probably can't think of new names.
Bourne Identity
Bourne Supremacy
Bourne Ultimatum
Bourne
??
