Check out this Russian weightlifting documentary.
Even if you don’t speak Russian it still worth watching.
- visit the Eleiko headquarters where they show how bumper plates and bars are produced and tested.
- compare the jumping power of weightlifter and parkour people
- testing how mush the bar touches the thighs during a clean and jerk
- look into weightlifting shoe production
Update: Video with English Subtitles thanks to Vladimir.