Big Baby poster
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Big Baby

5.520151h 22mNRMovieFamilyComedyScience Fiction

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…

DirectorStephen Langford
WriterStephen Langford
ProducersAndrew Lawrence·Paul Rocha

Where to watch

Amazon Prime VideoAmazon Prime VideoAmazon Prime Video with AdsAmazon Prime Video with AdsAmazon Prime Video Free with AdsAmazon Prime Video Free with Ads
Availability shown for United Kingdom · rights vary by country

Cast · Directed by Stephen Langford

MMMaureen McCormick
Maureen McCormick
Molly
ALAndrew Lawrence
Andrew Lawrence
Bobby
KDKen Davitian
Ken Davitian
Underbrunter
KGKip Gilman
Kip Gilman
Dr. Simon
AB
Alana Baer
Avery
GMGrant McLellan
Grant McLellan
Jason
NN
Nina Ann Nelson
Calamity
JHJim Hanna
Jim Hanna
Herb
MM
Matthew Muelot
Child Bobby
JW
Janina Washington
Veronica
TM
Tim McKernan
Oaff
MBMatthew Brenher
Matthew Brenher
Macon

More from Maureen McCormick · Lead actress

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I Dream of Jeannie
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2001 · 7.0
See all fromMaureen McCormick

More from Andrew Lawrence · Co-star actor

Bones
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Hawaii Five-0
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King of the Hill
King of the Hill
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NCIS: Los Angeles
NCIS: Los Angeles
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The Closer
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CSI: NY
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2004 · 7.3
The Guardian
The Guardian
2001 · 7.0
Recess
Recess
1997 · 7.7
Perception
Perception
2012 · 7.2
See all fromAndrew Lawrence

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Big Baby — streaming FAQ

Which OTT platform streams Big Baby?

Big Baby is streaming on Amazon Prime Video and Amazon Prime Video Free in United Kingdom, and available to rent or buy on Apple TV Store and Rakuten TV. It's not currently on Netflix.

Is Big Baby on Netflix?

No, Big Baby is not on Netflix in United Kingdom as of September 2026. It's currently on Amazon Prime Video and Amazon Prime Video Free.

Is Big Baby on Amazon Prime Video?

Yes — Big Baby is included with an Amazon Prime Video subscription in United Kingdom as of September 2026.

Where can I watch Big Baby for free?

Big Baby is available to stream free (with ads) on Amazon Prime Video Free in United Kingdom.