If you want to be in movies, feel free to go for all that fancy stuff--leave it to martial artists to complicate standing up

. If you want to get up without being thrown back down and beaten to a pulp...
How do you get up? Figure it out for yourself. Get up in any way that:
1) Does not compromise your balance
2) Does not compromise your defense
3) Keeps you facing whomever it is that you are fighting
4) Does not require any big weight shifting or leg flailing
This usually means using one hand as a guard and the other to push yourself up--just like you normally get up from the ground.