There is a significant difference between the versions you might find on various sites: Theatrical Cut (144 minutes):

The Kingdom of Heaven is now available to stream on Isaidub, a popular online platform. With its user-friendly interface and high-quality streaming capabilities, Isaidub provides an excellent opportunity for viewers to experience this cinematic masterpiece from the comfort of their own homes.

The Kingdom of Conscience: A Deep Analysis of Kingdom of Heaven

The film explores "The Kingdom of Heaven" not as a physical city, but as a state of moral integrity. Balian represents a secular humanist trapped in a religious war.

Crusades on Screen: Orientalism and Historical Accuracy in Ridley Scott's Kingdom of Heaven