"For 'X-Men' I was lifting a lot of weights. I actually lost a lot of mass when I quit "X-Men" because I was working out so much and very muscular and strong"

This quote by Jennifer Lawrence speaks with the commitment and effort she took into her function as Mystique in the X-Men movies. She wanted to put in the effort to end up being physically strong and muscular for the function, and it paid off as she had the ability to convincingly portray the character. After she finished recording, she stopped raising weights and lost the mass she had acquired. This shows her commitment to the function and her desire to go above and beyond to make sure she was able to do justice to the character. It likewise talks to the devotion of stars and starlets in general, who are willing to put in the hard work and effort to make certain their efficiencies are as realistic and credible as possible.