Who said what

[v8avm]

Good evening ,can anyone help me finnish this quiz,I require 4 answers,please and thanks
1; Will it go green?
2; Truth will come to light,murder cannot be hid ?
3; Stop messing about ?
4; I started at the top and worked down ?

[vegasmad]

3. kenneth williams

[Famous5]

3 Kenneth Williams

[novalis]

Stop messing about - Kenneth Williams

[novalis]

2 Launcelot in "The Merchant of Venice" is the origin but it may have been used by somebody else later.

[novalis]

4 - Orson Welles

[dunfermline]

(1) Richard Arnold

[v8avm]

Thanks vegasmad,Famous5,novalis,and dunfermline,for your help once again,from a scottish lassie