Yes definitely no Megaforce !
.My favourites some of which I saw at the flicks though not all are neccesarily great:-
Battle Beyond The Stars (Corny but fun)
The Last Starfighter (Really used to like this a lot)
The Humanoid (Saw this at the local cinema)
Star Trek-The Wrath Of Khan (Still one of my favourite Trek films)
Galaxy Of Terror (Good gory fun)
Hangar 18 (enjoyable conspiracy nonsense)
Saturn Three (I'd like to see the full original cut of this)
Forbidden World (Not a patch on GOT but OK enough)
Xtro (Love when the Action Man bayonets Lou Beale & a pre Living Daylights Maryam d'Abo remains in the memory !
)
Bladerunner (This grew on me over the years despite me not liking it the first time I watched the Warner rental tape)
Dune (I've always found this underrated)
Battletruck (Enjoyable Kiwi Mad Max clone)