STREEP: It's all about being free and having -- so I can look in the mirror and see me, not stuff. And it all has to do with, you know, it's not about the audience. It's all about fooling the other actors into believing that you are who you say you are because that's hard when you walk on set, and it's a big makeup job, and it makes it hard for them.
And I take my entire performance from them, so if they don't look at me and hate me appropriately or love me the way they're supposed to or find, you know, an old face but see the young one underneath, which is Jim Broadbent's task as Dennis Thatcher, then I'm lost. I don't have anything to go on because I can read that immediately in their eyes, you know.
GROSS: Gee, I never thought of it that way, that you have to convince the other actors that you're Margaret Thatcher.
STREEP: That's the whole deal, the whole deal.
Fox + America + Jesus
48 minutes ago