Library.

“Thailand was formerly a colony of the Khmer Empire.”

The wording materially misrepresents the historical relationship. The Khmer Empire controlled, influenced, or received allegiance from substantial parts of what is now Thailand, but no unified Thai state then existed as a Khmer colony. “Colony” also imposes a later political category on varied medieval relationships involving direct rule, tributary ties, and vassalage.

“The Thai film "Pee Mak" (based on the Mae Nak legend) became one of the highest-grossing films in Thai cinema history.”

Reliable reporting shows Pee Mak was a record-setting Thai box-office success and was widely described at release as the biggest Thai film at the local box office. That clearly supports the narrower claim that it became one of the highest-grossing films in Thai cinema history. The main caveat is disagreement over the exact gross and whether cited figures are domestic or worldwide.

“The Mae Nak Phra Khanong legend is associated with Wat Mahabut in Bangkok, Thailand.”

The evidence clearly supports the temple association. Multiple reliable sources identify Wat Mahabut in Bangkok as the shrine site and principal religious location tied to the Mae Nak Phra Khanong legend. Administrative district wording can vary, but it does not alter the core fact that the legend is associated with Wat Mahabut.

“A shrine dedicated to Mae Nak exists at Wat Mahabut in Bangkok, Thailand, and visitors leave offerings there including traditional Thai dresses, cosmetics, and toys for her baby.”

Evidence consistently shows that Wat Mahabut in Bangkok has a shrine dedicated to Mae Nak. Multiple independent descriptions also report visitors leaving votive offerings there, including Thai dresses, cosmetics, and toys associated with her baby. Some sources focus only on basic prayer items, but that does not conflict with the broader record of additional offerings.