Star Trek V: The Final Frontier (1989)
Pretty poor. Bad script coupled with a terrible story, stale acting, and terrible production values. Tried to be charming and fun like The Voyage Home but ended up silly and over the top. Overall, boring and cringeworthy.
4/10
The movie had trouble behind the scenes and then some. (Jerry Goldsmith turned in a great score as always, and I like those versions of the main theme and Klingon motif.) Shatner has wanted to rework it for years, but Paramount won’t pay for it like they did for the Director’s Edition of TMP.
There’s a fanedit in progress over at FE that might just make a good movie out of it.