10 Most Disappointing Sci-Fi Movie Sequels Ever

10. Terminator 3: Rise Of The Machines

Is Terminator 3: Rise of The Machines the worst of the Terminator franchise? Hell no! The film is a thoroughly enjoyable thrill-ride with a solid antagonist in the T-X, ridiculously ambitious set-pieces and some of Arnie's best one-liners, and it's certainly cut above the majority of sequels that followed it. In 2003, however, that just wasn't enough.

For many a years, it filled the role of 'lacklustre Terminator sequel' simply because, in spite of how much fun it was, it somewhat missed the point of the franchise's story, remained too light on the character development front and ultimately failed to live up the standard set by both of its incredible predecessors.

Sure, it didn’t help that we didn't have an abundance of poorer sequels to compare it to back then (which now highlights how decent it actually was), but that doesn't change the fact that the Terminator franchise's decline started with T3. It's just a shame it didn't end there as well.