20th Century Blended Sibling Movie Groups

Despite their prevalence, non-traditional sibling bonds are often overlooked among the many different types of sibling relationships. In recognition of these unique bonds, a movie poll about blended sibling groups that are as equally strong as biological ones.

Which of these blended* sibling groupings from a 20th century movie is your favorite non-traditional combined brother-sister group? * half-siblings, step-siblings, adopted siblings, foster siblings, or other non-traditional blended siblings (NOT SAME TWO PARENT SIBLINGS)

Discuss the topic here.