Maybe the scene where Luke buttplugs the death star and the bombs appear to arc into the hole. The Death Star is nowhere near large enough to generate gravity, but I guess there's a precedent in that there's earth-like gravity inside it.
BUT THEN AGAIN, the gravity on the death star appears to be vertical because the millennial falcon goes into a loading bay on the equatorial axis, and everyone walks out like it's fine. So that doesn't make sense.
BUT THEN AGAIN, during the death star attack in the same film, the rebels attack a trench which is between the equator and the polar area (see video). If the gravity was vertical this area would be at an awkward angle of sorts. But the turbolasers on the surface of the death star are manned as if the gravity is perpendicular to the surface, like a real planet.
BUT THEN AGAIN a super star destroyer falls directly towards the second death star despite the actual planet being off to the side of the battle in most shots.
BUT THEN AGAIN Luke and the emperor are somewhere near an equator hangar bay watching the battle from below (((???))) and the gravity is vertical again.
Safe to say, the gravity in star wars is entirely camera-dependent.