MGM's A Yank at Eton follows the same basic formula as the 1938 Robert Taylor starrer
A Yank at Oxford, with a wartime angle thrown in. This time it's Mickey Rooney as the cocky young American who is shipped off to England to complete his education. Upon his arrival in the hallowed halls of Eton, Timothy Daniels (Rooney), bereft of common courtesy or a sense of tradition, wastes no time alienating the rest of the students. Eventually of course, Timothy knocks the chip off his own shoulder and becomes a model student and top athlete. Freddie Bartholomew, Rooney's costar in so many MGM classics of the 1940s, plays Timothy's upper-classman half-brother Peter Carlton, who applies a little "tough love" to bring our headstrong hero into line; also seen as the school bully is new MGM contractee Peter Lawford, who in 1938 had made his American film debut in the Rooney-Bartholomew starrer
Lord Jeff. ~ Hal Erickson, All Movie Guide