Barbarella: Queen of the Galaxy (1968) on Netflix

In the future, a beautiful astronomatrix named Barbarella (Jane Fonda) floats through the galaxy in her spaceship, the Alpha-7. Suddenly, she receives an urgent call on her monitor from none other than the President of Earth (Claude Dauphin). He informs her that a young scientist named Durand Durand went missing sometime during a mission to the North Star and is believed to have landed somewhere in the Tau Ceti star system. Not much is known about this region of space--the President worries that Durand's invention, the positronic ray, may fall into the hands of a primitive culture; beings who might seek to use this technology as a weapon and launch an intergalactic war. Since the Earth, free of all conflict for centuries, lacks military and police personnel, the President tasks Barbarella with a mission to find the scientist. He teleports her some weapons and a device that will signal the presence of Durand Durand. The latter has a tonguebox incorporated in its design which can translate any language.