Davis Lecture Theatre is listed as a cinema at 4 Watt Street in Whanganui. The linked page and the earlier text describe the Whanganui Regional Museum in Pukenamu Queen's Park, and the page is a broken link with a donation form, so we have set both aside.
The directory holds no details of what this theatre screens or stages, its programme, prices, opening hours, booking or access, and no figures for other cinemas nearby. So we can say no more about what it offers or how it compares.