What is the name of this 'Sherlock Holmes themed' movie?

I’m looking for the name of modern ‘Sherlock Holmes’ movie , seen within the last 20 years. The movie opens in a clinical setting, the staff watching
a group of mentally challenged teenagers getting their candy treats. A staffer notices that one boy always gets the M&M candies. Further review shows that he asks for M&M’s but is speaking in a mentally challenged voice. The staff suspects misdiagnosis. IIRC the hero solves some crimes and his nurse is Dr Watson.

Thanks
softie

Could it be, They Might Be Giants?

Since this is about a movie, let’s move it to Cafe Society.

Colibri
General Questions Moderator

They Might Be Giants came out in 1971, 47 years ago. It starred George C. Scott as the psychiatric patient who believe he was Sherlock Holmes. Scott was in his 40’s, not a child. It’s true that the psychiatrist was a woman named Watson. Are you confusing two movies that you saw long ago? Is there a movie about a boy always choosing the M&M’s?

I watched the youtube trailer. That is certainly the way my movie ended, but not as dark

George Scott is too physically mature for the movie hero I’m remembering. Maybe I am confusing 2 (or more) movies. There are movies with M & M’s, but nothing fits my overall memory . Maybe the Mars company would know if their product was used in a movie.
Thanks for the help.
softie

They Might Be Giants has nothing similar to “The movie opens in a clinical setting, the staff watching a group of mentally challenged teenagers getting their candy treats. A staffer notices that one boy always gets the M&M candies” in it (as far as I can tell). That has to come from another movie (or from your imagination).

The Baker Street wiki lists these modern Holmes-themed films:

[ul]
[li]A Study in Terror (1965)[/li][li] The Private Life of Sherlock Holmes (1970)[/li][li] The Seven Per-Cent Solution (1976)[/li][li] The Strange Case of the End of Civilization as We Know It (1977)[/li][li] Murder by Decree (1979)[/li][li] The Adventures of Sherlock Holmes and Dr. Watson: The Hound of the Baskervilles (1981)[/li][li] Young Sherlock Holmes (1985)[/li][li] The Great Mouse Detective (1986)[/li][li] Without a Clue (1987)[/li][li] O Xangô de Baker Street (2001)[/li][li] Sherlock Holmes (2010)[/li][li] Sherlock Holmes Baffled (2010)[/li][li] Holmes & Watson: Madrid Days (2013)[/li][li] Mr Holmes (2015)[/li][li] Thupparivalan (2017)[/li][li] Holmes and Watson (2018)[/li][/ul]