Oh, Boy!
A mysterious scientist presents a timid chemist with an elixir which turns him from a weakling into a confident, vital male, able to defeat his rival and impress the girl of his choice. The only problem is that this mysterious substance has the unexpected result of causing him to revert gradually to babyhood...
Below are the streaming services currently carrying the movie “Oh, Boy!” in the United Kingdom, along with how each offers it (subscription, buy, or rent) and a direct link. Licensing differs by market, so availability in the United Kingdom can differ from other countries.
Where to watch Oh, Boy! in United Kingdom
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Not currently available on the supported providers in United Kingdom.
Availability can change as licenses rotate — confirm on the provider’s page before subscribing. Last checked: 25 Sept 2026.