Frankenstein Unbound is a 1990 science fiction horror film based on Brian Aldiss's 1973 novel of the same name, starring John Hurt, Raul Julia, Bridget Fonda, Jason Patric, and Nick Brimble.

The film is co-written and directed by Roger Corman, returning to the director's chair after a hiatus of almost fifteen years.

In 2031, Dr. Buchanan and his team work to develop the ultimate weapon, an energy beam that will completely remove whatever it is aimed at.

Buchanan hopes he can create a weapon so powerful that it will end all war and have the added benefit of having no impact on the environment.

Unfortunately, the prototype has unpredictable side effects, creating erratic global weather patterns and rifts in space and time that have caused some people to vanish.

The men discuss science over dinner and it is revealed that Frankenstein's young brother has been killed.

While the monster is distracted, Buchanan re-routes some of the electrical cables to begin powering up the prototype laser in his car.

At the same moment, the woman is restored to life and Buchanan's energy beam is fully charged; he fires.

Producer Thom Mount approached Roger Corman with the idea to get him back into directing after a two decade absence.

[4] To get a strong script, Corman looked to known writers including Wes Craven and Floyd Mutrux to craft something original before ultimately having F.X.

Vincent Canby of The New York Times wrote "The movie ... looks fine, and the performers are mostly good.