"The Empire Strikes Back" is the perfect continuation of the "Star Wars" saga, fleshing out the Universe and developing the characters, while offering superior effects, cinematography, writing, acting and direction.
"Puppet Master 5" is technically superior to its predecessor, moving from 'hilariously terrible' to...just 'terrible'...Damn it! I can't even laugh at the badness anymore. Instead I just have to be bored.
"Dragonball Z: Wrath of the Dragon" is... different, and not in the way that "Fusion Reborn" was different- where it felt like the filmmakers were subtly adapting a 'Goku x Vegeta' slash fanfiction while tripping out on drugs. This one just has different priorities, toning down fighting for the sake of fleshing out and developing its primary character.
"Bojack Unbound" is interesting because it has everything I like and dislike about the Dragonball Z serial flicks. The film contains an intense civil war between bad and good, with the winner depending entirely on the viewers personal preferences. But even though it's really uneven, at least it stands out.
"Dragonball Z: Super Android 13!" is the only serial film that doesn't just ignore the established continuity...It urinates acid onto it, creating holes that will mind rape us fans. That sounds pretty bad, right? Oddly, no. This film is just unpretentious fun, showcasing nothing but Goku, Trunks and Vegeta participating in thoroughly enjoyable battles.