Do you believe in such mutation which could result super powers like that of shown in movies?

There are mutations. But none have ever been seen to that degree. I am mutated myself. I have what's called an endomorphic muscular system. I am naturally strong. I could always perform huge shows of strength. One of the draw backs is my tendons and joints are all normal. So I have destroyed my body. My shoulder had to be reattached to my body with 7 anchors. Another draw back is my weight. Because muscle weight is more I look like I weigh 230 but I am 310. I have also read some other cases like this kid that was born pure muscle. He can't retain fat and is physically superior in most ways. Downfall he always has to eat to keep up energy. So in otherwords being a mutation myself yes there re mutations but none like that.