Diary of a Wimpy Kid: The Last Straw is a 2025 animated comedy film based on the 2009 book of the same name by Jeff Kinney. It is the eighth installment in the Diary of a Wimpy Kid film series, the fourth animated film in the series, and a direct sequel to Diary of a Wimpy Kid Christmas: Cabin Fever (2023). It is also the second adaptation of The Last Straw, after elements of the book were previously adapted into the 2012 live-action film Diary of a Wimpy Kid: Dog Days.

Plot

Middle schooler Greg Heffley finds himself continually at odds with his father, Frank Heffley's, outsized expectations. Believing his son is too "wimpy," Frank threatens to send Greg to Spag Union Military Academy, forcing Greg to desperately attempt to prove he can "toughen up" and handle responsibility.