Warriors of the Lost Apocalypse or Mitchell,
both through MST3K.
So many MST3K..... Hobgoblins, Mitchell, Eegah, Manos - Hands of Fate, Wild World of Batwoman, Angels Revenge, Parts the Clonus Horror, and so on. But top of the pile has to be Time Chasers. Absolute amateur s***.
The worst movie I paid to see at the cinema was called 'Shallow Hal' (Jack Black Gwyneth Paltroe romcom) and remains the only one I've walked out on half way through.