The first Jurassic Park movie is all time one of the greatest films ever made with the special effects still holding up to this day. The 2nd film was still very enjoyable in my opinion but it was just a cookie cutter sequel not bad, not good. The 3rd film wasn’t great at all. But compared to the rest of the series the 3rd film is basically the godfather.
As another personal pick the 1st blade movie is a hood classic good. The other 2 not so much.
Any of the classic Disney animated movies. First movie is a ripoff of classic fairy tales so most of the heavy lifting writing wise was done for them, the instant Disney has to write the whole thing is when it goes to shit. If it's "Disney presents [insert fairy tale here] 2" you know it'll suck.
Cinderella 3 is amazing though /s. It's great for a laugh on Halloween.