Arthur 3: The War of the Two Worlds (2010) runs 1 h 41 min, is rated G in the US and averages 5.8 from 1,654 TMDB members. 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.
Availability loads live for your country. See where Arthur 3: The War of the Two Worlds streams (JustWatch via TMDB) →
Streaming availability by JustWatch. In the US, as of 2026-11-04: Amazon Prime Video (subscription), Lionsgate+ Amazon Channel (subscription), Amazon Prime Video with Ads (subscription), Starz Apple TV channel (subscription), The CW (free), Hoopla (free), YouTube Free (free with ads), Amazon Prime Video Free with Ads (free with ads), Tubi TV (free with ads), Amazon MX Player (free with ads).
Arthur 3: The War of the Two Worlds on TMDB · This product uses the TMDB API but is not endorsed or certified by TMDB.

Lights Down is a free tool: tell it your streaming services and how long you have, and it ranks what you can stream tonight, with a this-or-that, a roll, a bracket and a wheel. Movie data from TMDB; streaming availability by JustWatch. Page updated 2026-11-05. This product uses the TMDB API but is not endorsed or certified by TMDB. Lights Down is a Somebody Decide program. How the data works · Legal & privacy · Tonight's lists