Intelligent summary, isn't it?
If Mad Max was something of a simple, straight forward, nothing special but nothing wrong either kinda film, they totally made up for it with it's sequel, The Road Warrior. So, in theory, with a third great film it would've been a great trilogy... now, it's not!
Such a huge disappointment Beyond Thunderdome was! It's main premise is pretty cool, with an 'underworld' (think a mix between Metropolis and The Time Machine), but it all isn't carried out with too much conviction. Add the obnoxious Tina Turner and the no good story-line of the people waiting for a plane, and this is just one huge stinker.
Maybe they can brighten things up again with part 4 (although that one is just probably gonna be 1 huge budget-explosion kinda thing), because this just isn't right.
3/10.