The Empire Strikes Back (1980)
Superior in some respects to it's predecessor, the action scenes, the sword fights are more interesting, it at least tries to have some kind of attempt at an adult romantic relationship, the dialogue is mostly zippy but it is a bit messier and suffers especially in it's mid-section.
Basically the film comes to a halt when Yoda turns up. Annoying, pointless speech patterns, dull training sequences (skip the training in stories - it's an implied progression that doesn't really need to happen) and more talk about 'The Force', never Star Wars strongest point of excitement.
There's some lovely design and a good mix of locations again, the ATATs and TIE Bombers particularly cool.