"Hawks says it's wonderful we knew and worked with Marilyn before she got difficult. Because she was so winning and adorable in Monkey Business [1952]. When I drink that youth serum and I'm acting like a teenager, Marilyn really got into it. I'm diving off the high board and she's giggling and waving me on. Years later she asked me to costar in something called The Billionaire. It was a comedy and she said her husband Arthur Miller was reworking it. Arthur Miller a comedy writer? I ran away and so did Greg Peck, and the completed film, ' [1960], showed she'd become all blurry and distant. It was sad."