I think it's an actor's responsibility to change every time. Not only for himself and the people he's working with, but for the audience. If you just go out and deliver the same dish every time ... it's meat loaf again ... you'd get bored. I'd get bored.
I was against it on two counts. First, the Japanese were ready to surrender, and it wasn't necessary to hit them with that awful thing. Second, I hated to see our country be the first to use such a weapon.
Titism has taken over the country. Audrey Hepburn may singlehanded make bosoms a thing of the past. Never again will the director have to invent shots where the girl leans forward for a scotch and soda.