The iconic 1960s TV series Star Trek reached the big screen in 1979, everyone was a little older but the budget was a lot bigger and the special effects much improved. Of course only Kirk and the Enterprise can save the day as a gigantic energy cloud with the mysterious VGER approaches Earth...
Admiral Kirk (William Shatner) takes over the rebuilt Enterprise, much to the chagrin of Captain Decker (Stephen Collins) who thought it was his ship. His crew is a mixture of the original crew including Leonard Nimoy and Deforest Kelly and some new faces (who prove largely expendable).
The special effects are very impressive, especially of VGER, early computer graphics and lasers helping generate a wonderful vision of alien technology. The sense of scale is stupendous.
However at times the special effects do go on a bit. The story is probably the most "Star Trek" of any of the movie series though is a bit slow at times - space battles were to come later in the series.