Melissa McCarthy finds it ''crazy'' Susan Sarandon agreed to star in Tammy
. The 43-year-old actress - who co-wrote the movie with her husband, director Ben Falcone - was unsure whether to approach her ''absolute dream wish'' to play her on-screen grandmother and was delighted when she agreed. She said: ''Oh, my God! How crazy is that? I couldn't believe it when we... She was our dream person to go out to. And we hemmed and hawed. Like, 'Do we even have a chance of it? Will she ever read it? And then we thought, 'We have to start with our absolute dream wish. We have to. And then if we get rejected, we continue on.' And next
thing you knew, we were going to have a phone call with her, and Ben and I couldn't believe that. And the next thing, we're talking to her, then we're out to dinner with her. And I just thought, 'My God, is this thing happening?' And she took a character that we already loved, we really loved Pearl, and she made it so much better."