10 Movies They Didn't Know How To End

9. Alien: Covenant

Alien: Covenant is by no means a great movie, but it does do a solid job of positioning malevolent android David (Michael Fassbender) as the new antagonist of the franchise, while serving up some brutal death scenes.

The less said about the dum-dum characters, admittedly, the better.

But after fans complained that Prometheus wasn't enough like Alien - in that it didn't feature a single xenomorph - Scott decided to "remedy" this...by shoehorning some traditional xenomorphs into the final 20 minutes of the movie.

Up until that point, the movie's characters had been fending off a vicious new proto-xenomorph, and after the last of these creatures is killed, the focus appears to shift towards David being Covenant's ultimate antagonist.

But of course, the final half-hour of the movie gives the heroes not one but two classic xenomorphs to fight off out of nowhere, before arriving at the hilariously predictable closing twist that, yes, David has assumed the identity of the team's android, Walter.

Again, Covenant is plenty flawed throughout, but needlessly resorting to schlock-filled nostalgia for its final battle was a creatively bankrupt move if there ever was one.

The writers clearly knew they had to build to a finale that cemented David's villainy, but didn't really know how to fill in the blinks. When in doubt, xenomorphs!