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 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.

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.