It seems like you're referring to the movie "Little Man" released in 2006. In this comedy film, a man named Calvin is a little person who poses as a baby in order to retrieve a diamond he had hidden in a woman's purse. Hilarity ensues as he tries to maintain the disguise while dealing with various comedic situations. The movie explores themes of mistaken identity, deception, and family relationships in a comedic manner.

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"Little Man" is a comedy film directed by Keenen Ivory Wayans and released in 2006. The story follows a small-time criminal named Calvin Sims, played by Marlon Wayans, who disguises himself as a baby in order to retrieve a stolen diamond from a woman's purse. Calvin, who is actually a little person, is mistaken for an abandoned baby by a couple who desperately want a child. They take him in, unaware of his true identity.

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 Calvin struggles to maintain his disguise while dealing with the challenges of being treated like an infant. As the story unfolds, Calvin forms an unexpected bond with the couple and begins to question his criminal lifestyle. The film is filled with slapstick humor, physical comedy, and absurd situations as Calvin navigates his way through this bizarre predicament. Ultimately, "Little Man" is a lighthearted comedy that explores themes of identity, family, and redemption.

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