Historically, cinema often leaned on extreme depictions of blended families. In the mid-20th century, stepfamilies were frequently idealized and optimistic, while the 1960s and 70s saw a shift toward more pessimistic or cautious tones.

Modern films frequently depict the lack of shared history or biological ties, highlighting that step-relationships take time to build and that stepparents often feel they have many responsibilities but few "rights".

Unlike relationships between childless adults, blended families require a significant "adjustment phase" for children, which is often a central plot point in dramas and comedies alike.