The Wonder Kid is a 1952 British drama film directed by Karl Hartl and starring Bobby Henrey, Elwyn Brook-Jones and Oskar Werner.

Sebastian Giro is a ten-year-old French boy and child musical prodigy found in an orphanage by Mr Gorik (Elwyn Brook-Jones) who exploits the youngster’s talent as a classical pianist and turns him into an international celebrity.

Sebastian’s elderly English governess, Miss Frisbie (Muriel Aked) is very concerned about the boy and confronts Gorik about his crooked activities.

Miss Frisbie then pays a gang of crooks to "kidnap" Sebastian and take him to stay in a remote lodge in the Austrian Tyrol, where the boy has never been so free and happy and Gorik won’t get him back until he’s paid over a huge ransom which is, in effect, all the money he has stolen from the boy.

[2] The Wonder Kid was filmed on location in Austria and at Isleworth Studios in England in late 1949 and early 1950, but not released until 1952.