Iron Baby, which features Margaret transforming from toddler to iron-clad superhero, has attracted 2.6 million hits so far.
The parody short film was directed by Margaret's father Patrick Boivin, who is a self-taught filmmaker and former comic book creator from Montreal.
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In the real world: The film, which has become an internet sensation, starts with baby Margaret as an ordinary Tony Stark
Superhero: The baby begins to transform into Iron Man
The film's success has apparently been felt beyond the internet, with Mr Boivin saying he has had offers from Hollywood film producers.
The clip starts with Margaret as a bib-wearing Tony Stark, who is transformed by her mini-armoured costume into Iron Man.
Finishing touches: Margaret holds still as her transformation into iron-clad superhero is completed
Jetting off: Iron Baby takes to the skies in pursuit of comic book villains
Costing virtually nothing, the short film took two months to make.
Despite its obviously jovial tone, Mr Boivin and Mr Simard produced the video as a way of promoting themselves.
Touch down: The pint-sized superhero lands to fight toy bunnies wielding guns
The enemy: In the short film Iron Baby comes across gun-toting toy bunnies
Action hero: The miniature superhero destroys the bunnies with laser beams fired from the palm of her hand
It seems Margaret also enjoyed her starring role, with Mr Boivin hinting he may well produce more films with his baby daughter.
'I’m pretty sure I’m going to do some more clips with my girl', Mr Boivin said.
