Sentences that have to do with acting NEED HELP VOCAB and GRAMMAR

These sentences I got from a movie on acting and I thought they sound off, some at least and I don't get all the vocabulary, some phrases. Would you be so kind as to help me with them?

1 I don't need you. I've got calls into other people that will do the job. (WHAT DOES CALLS IN MEAN?)
2 Wait until your tv show gets picked before you buy a porsche.
3 He's not good enough an actor to play this part.
4 How do you feel you can tailor your successful approach to signing writers to signing stars like Julia Roberts. (what does this mean and isn't this confusing?)
5 Actors these day have taken to the new trend. (Can you say TAKEN TO SOMETHING?)
6 The scenes in his movie are never banal and redundant, He only shoot the important sceneS.
7 Mishap after mishap is what got him out of business.
8 An actor has to be able to act in the way the script describes the character.

THANK YOU