An aerial photo of what may be the Montezuma Creek Drive-In Theater.
mapquest.com

Montezuma Creek Drive-In

Montezuma Creek, Utah
Unknown

The Montezuma Creek Drive-In was located west of the town, across the actual Montezuma Creek.  An aerial photo on mapquest.com shows what may be a drive in, at the very west end of town, but the location has not be confirmed.