Well,it is single player...The grafics are just like Sims 2...
You start from the 1920's till 2000's(The game never ends)...Every 5 year,there are awards...Best director,Best actor,Best selling movie)...
Also later,in a movie you created,you can also add your voice from microfone and write subtitles..
See the gamespot webpage in the 1st post,for more details..