Orgasmic birth: an old (mid)wives tale?

Orgasmic Birth. That's the name of a new documentary in which women breathlessly recount their pleasure-filled childbirths and how much they enjoyed a really good push.



A scathing critique of the film appears in The Age: http://tinyurl.com/9yr9ek

I'm not going to comment on whether orgasms are possible during birth because I have no idea but I'm open to the idea. Has anyone experienced this? What do you think? An old (mid)wives tale?