Bubble Boy (2001)

From the moment of birth, Jimmy (Jack Gyllenhaal Jake Gyllenhaal) is destined to be an unusual boy who suffers from the extremely rare severe combined immunodeficiency disease, which means that he does not have any immune system, and any bacteria that are not worth mentioning to a normal person may multiply in Jimmy's body and threaten his life. The only way to treat the disease is a bone marrow transplant, but doctors have never found bone marrow that matches Jimmy. As a result, Jimmy can only live all day in a sterile round balloon, he is known as the "running boy". Jimmy has lived in bondage and fear since childhood, and has never experienced the chic and wanton nature of life. With the passage of time, Jimmy's character becomes more introverted and eccentric. At this time, a beautiful girl appeared in Jimmy's life, and her presence made Jimmy eager to get out of the bubble and embrace life.