Heard on the radio today that Daniel Craig has been using rings in his training for the next James Bond film. Had a little Google to find out more.
One site said:The ‘crucifixion’ move on the rings is regarded as one of the toughest for a male athlete in any sport. It’s the ultimate test of strength and control. Daniel is close to mastering it.
I guess it's pretty good going for an actor (if it's true) ...he did say in an interview that he didn't want to be so bulky for the second film, but still wanted to look impressive. I imagine more will be revealed about his training as time goes by, and it'll be interesting to see how much gymnastic conditioning he has actually been doing.
...and sorry for the awful pun in the title! 
Cheers,
George.