The finished version of the Star Wars movies differed greatly from what George Lucas originally intended. A good example to illustrate this is through the character of Luke Skywalker. His original name in the script and story was intended to be Luke Starkiller. This was changed after Charles Manson and his gang became “star killers” after murdering actress Sharon Tate.
Staying fit is certainly a commitment. Besides doing the physical training, there are some other factors to consider, like nutrition