I went to dance classes from 9 in the morning until 1, then to school from 3 to 10 at night, always under the threat that if I failed a single course I could forget about dancing.
The actress they'd hired had refused to appear naked in front of the camera. I didn't like to appear naked either, but the first thing I did was take off my clothes and jump into the pool completely naked.
I chose the most explosive dress I could find. I put a ton of makeup on and some great round earrings. I looked like Jennifer Jones in Duel in the Sun.
Compared to dancing, films seemed to me to be the work of lay bums. There was no physical pain; it was enough to say and imagine what was in the script. It was very easy for me.