u hav 2 buy loads of stuff that u can place on the floor and put it all arounds the stage
until it says task complete
then u hav done it

just put up 5 items, from the store with the objects like paintings, posters, and stuff in
Sim quarter. When you are done, you'll know because it'll say action completed.

well buy like paintings and things that you can put on the floor and put them on the stage
at the cinema
hope i was of help =]