Scaffold help please!

I need some help please, im am doing a movie list so i first do a scaffold for movies:

ruby script/generate scaffold movie title:string description:text ranking:string

and it works ok

but then i do a second scaffold to create person table

ruby script/generate scaffold person name:string role:integer description:text

till that it seems all right but i put in my browser the controller for a new person I add a new person but nothing happends whats wrong!!!

thank you!