Big Baby
When scientist Dr. Simon invents a genetic transformation machine, evil business men scheme to steal his billion dollar idea. But before they get the chance, Dr. Simon’s two-year-old grandson accidentally turns his body into a thirty-year-old man and runs off. Now his siblings must catch him and figure out how to change him back before their parents get home – and before the bad guys get to him first.
Below are the streaming services currently carrying the movie “Big Baby” in Canada, along with how each offers it (subscription, buy, or rent) and a direct link. Licensing differs by market, so availability in Canada can differ from other countries.
Where to watch Big Baby in Canada
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Availability can change as licenses rotate — confirm on the provider’s page before subscribing. Last checked: 13 Sept 2026.