I can check the for your specific location.

Batman: Under the Red Hood is a seminal film in the superhero genre that offers a dark, complex look at the Batman mythos. While the desire to watch it for free is common, the only safe and legal method to do so is by utilizing ad-supported streaming services like Tubi or Pluto TV, or through an existing subscription to Max. Avoiding illegal streaming sites ensures better cybersecurity for the user and supports the creators behind the film.

Informational Report on Batman: Under the Red Hood (2010) – Accessibility and Synopsis