Arthur 3: The War of the Two Worlds
Original title: Arthur 3: la guerre des deux mondes
Recommended from age 6. Giant Maltazard and sustained threat to the human world.
Reason translated with AI from our Spanish original.
Good to know
- Scary scenes
- Frightening villains, monsters, transformations or jump scares.
- Fighting or violence
- Punches, weapons, injuries; slapstick barely counts.
Low confidence: approximate age
Low confidence: approximate age · The models disagree or know little about this movie. If you can, have a look first; it is waiting for review.
Where to watch
UK
Not on streaming services in the UK right now.
US
Included with subscription: 
Lionsgate+
Prime Video
Starz
Free (with ads): 
Amazon MX Player
Hoopla
The CW
Tubi
YouTube
Spain
Included with subscription: 
Disney+
Rent or buy
Availability as of 18 October 2026. Data from JustWatch. Streaming data and logos: JustWatch.
TMDb user score
What it’s about
With Maltazard now seven feet tall and Arthur still two inches small, our hero must find a way to grow back to his normal size and stop the Evil M once and for all, with the help of Selenia and Betameche.
Genres: Animation, Adventure, Fantasy, Family
If your child is sensitive
If they get scared: under 7, a cuddle or a pause helps more than explaining it isn’t real. From 8, explaining does work.
Other opinions
What families think
Loading opinions…
Disagree?
Does the age look wrong to you? Tell us which scene and we’ll review it. Write to us
Similar movies for the same age
This product uses the TMDB API but is not endorsed or certified by TMDB. Streaming data: JustWatch.