That vid misses quite a few vital safety aspects, like making sure the non-raised wheels are chocked properly for one...
Firstly, never ever ever try and use a sill jack on any other part of the car other than the proper jacking points. As Bard said, a road car is not strong enough to do this and you will either destroy the jack or your car. Heck, if your lucky, maybe even both!
If you want the front lifted then use the centre of the cross member - not the sump! Always use jack stands and try to keep them as close to the suspension pick up points as practicle as possible. The control arms used in that vid are a good idea, although I cant say using the edge of them is that bright. Personally I would use a bit of wood between the jack stand and the control arm (steel on steel is asking for trouble IMO) then you can use the whole control arm not just the edge.
For the rear, try putting the jack under the diff housing. Just be aware that the car will be VERY unstable as it is being jacked and can rock from side to side.
It should go without saying that safety should always come first. Never get under a car that is supported by a jack, always make sure the car is on level ground before raising it at all, and try to keep bystanders right the f**k away. One other person as a spotter is a good idea, but that should be it. Always fully chock any wheels that are to remain on the ground. Also, try not to open any doors on a car that is supported by a jack. Especially on 2 door cars, this can really upset the balance of the vehicle. Lastly, as I said before, its always a good idea to use wood between any steel jack or jack stands and the car. Apart from adding a "crush" factor that helps with stability, the friction coefficient is much higher making it more stable.