The one problem we have with the Next Generation films (all four of them) is that someone high up in the film-making process seems to forget that the Next Generation began as a television series about equals, as opposed to the Original Series having 3 stars and a lot of supporting characters. I understand that Picard and Data are seen as the most popular characters in the Next Generation that appeal to the general public, but the story lines that get played out for the two of them in the movies (family and finding humanity) have already been done in the series.
Those two themes - Picard's family and Data's quest for humanity - are central parts of this film, and take up a lot of the time, but the other characters do get their moments, and being the gracious professionals that they are, Frakes, Sirtis, McFadden, Burton and Dorn all give fabulous performances. Whoopi Goldberg appears unbilled as Guinan, and Patti Yasutaki also appears as Nurse Ogawa.
"Generations" also features three members of the Original Trekers, Captain Kirk, Scotty and Chekov, the latter two in small roles, while Kirk has a much larger role, yet his scenes, alongside Picard, are the slowest and most boring part of the film, even if they are confronting the enemy together.
One of the enemies in "Generations" is a mad man, well played by Malcolm McDowell, the others are the two Klingon sisters who appeared towards the end of the Next Generation series, and make welcome appearances once more. Also watch for Jacqueline Kim as the daughter of Sulu from the Original Series.
This is a decent film, but like all Next Generation films, can be quite repetitive and leaves some of the cast (particularly the lovely McFadden) with little to do.
