Star Crystal

Star Crystal is a 1986 science fiction movie, directed by Lance Lindsay.

Two months later another expedition comes on board, but they end up stranded when their shuttle explodes. When they start to explore the ship in order to repair it and survive until rescue comes, a mysterious creature starts to kill them all and takes control of the ship. Eventually, with only two crew members alive, the creature reveals itself its name is GAR, and his crystal is an advanced alien computer. By hacking into the ships computer Bernice, it learned the English language, the history of human evolution, and read an electronic bible. It discovers the humans are not as belligerent as it first thought it explains that the deaths were just misunderstandings, as it believed it fought in selfdefense the whole time. GAR begs for forgiveness and relinquishes control of the ship to the surviving humans. The two species manage to peacefully coexist on board until a space anomaly occurs. GAR sorrowfully realizes that he must part ways with the humans, promising that he is grateful for their brief friendship and that he will never forget them. The film concludes with Crystal of a Star, sung by Stefani Christopherson.On June 24, 2003 it was released for the first time on DVD in Widescreen by Anchor Bay Entertainment. ........

Source: Wikipedia