In "The Squid and the Whale," the titular squid and whale symbolize the conflicting perspectives and emotional turmoil within the family. The squid represents the mother, portraying nurturing and sensitivity, while the whale symbolizes the father, embodying authority and dominance. Their contrasting traits reflect the struggle between empathy and detachment in the family's dynamics, mirroring the children's confusion and emotional conflicts as they navigate their parents' divorce. Ultimately, the film explores themes of identity, loss, and the complexities of relationships.

"The Squid and the Whale" was primarily filmed in Brooklyn, New York. The film, directed by Noah Baumbach, captures the nuances of a family's dynamics during a divorce, and many of the locations reflect the real-life setting of Baumbach's own childhood. Key scenes were shot in various neighborhoods, showcasing the distinct architecture and atmosphere of Brooklyn, which plays a significant role in the film’s storytelling.

In the ending of "The Squid and the Whale," the two brothers, Walt and Frank, continue to navigate the complexities of their parents' divorce and their own identities. Walt, feeling overshadowed and struggling with his emotions, ultimately distances himself from his father, Bernard. Frank, who has been more affected by the divorce, finds solace in a new friendship. The film closes with a sense of unresolved tension as the boys face their uncertain futures, reflecting the lasting impact of their family dynamics on their lives.

"The Squid and the Whale" is rated R primarily for its strong language, sexual content, and themes involving familial strife and emotional distress. The film includes scenes that depict the complexities of a divorce and its impact on children, featuring explicit discussions about sexuality and relationships. Its candid portrayal of the characters' struggles and the use of profanity contribute to the mature rating, making it suitable for adult audiences who can appreciate its nuanced exploration of family dynamics.