Movie about an alien planet that starts with a z

The film begins with an Earth space craft stumbling upon a movie floating in the vast nothingness. The film turns out to be from planet Zog and when people see it, they are shocked and angered by the Zogs (or is it 'Zogians' or 'Zogites'?). It seems that they have their genitals where our heads are and vice-versa. To make things really weird, they eat and drink with their genitals and defecate with their faces.

The film is in 3 parts: 1) 'Eden' - Aliens from the planet Rhea have flown with a damaged spaceship to Earth, looking for intelligent beings. They find apemen and take one of them into their ship. 2) 'The Wanderer' - A crime writer, who is travelling to see his dying friend, picks up a strange hitchhiker. On his return from the sanatorium, his car goes off the road, but the stranger lifts it into the air and lands it back on the highway. Then he goes to the writer's house and shows him his supernatural abilities. 3) 'My First Day' - Len, an alien traveler arrives on Earth to share with humans the knowledge of their ancient civilization. He meets its inhabitants, who are served by robots and travel back in time, because their life is boring and meaningless. Every day his hostess Lena visits an ancient Slavic settlement and monitors its inhabitants. One day she appears before the hunter Bayan, who has been captivated by her beauty and takes her into his hut.

A misguided scientist enables an alien from Venus named Zontar to come to earth in order to "help solve man's problems". However, as soon as Zontar arrives on Earth, it quickly becomes obvious that the three-eyed, bat-winged, skeletal black creature has a hidden agenda.

Somewhere in the Universe, the Planet Z. A miracle happens. A water jet springs up and gives birth to a new life: plants. A desert planet became a green planet… The film shows natural phenomena – and not subjects – to tell a story about a living, evolving and dying planet.

The existence of mankind hangs in the balance as two warring factions of aliens do battle in Mark of the Astro Zombies. The film begins with an invasion of Earth by aliens who plan to turn human beings into zombies. They gather high-level government officials and attempt to get from them certain knowledge and information they will need. A kind race of aliens lands on Earth and decides to try and stop the evil ones from succeeding with their plans.

Z is a short film set in a post apocalyptic era in Nigeria around the 2050s which reveals a developed Nigeria undergoing invasions. The word Z centers around a scientifical project (PROJECT Z) created by a Company called 'The Triangle'.

In the 21st century planet Earth was rendered inhospitable to life, and people mass-migrated to Planet Zi, the natural home of metallic life forms known as Zoids. Many years later, Zi faces its end. Its inhabitants partake the journey to migrate back to Earth. Attempting to regenerate the Earth to make it hospitable, the migrants come up with a "Zi-Forming" scheme. However, the plan fails and Earth is left in its state of turmoil. Overrun by Zoids and blanked by unstable weather phenomena, the migrants are faced with a difficult life. The Empire and Republic settlements attempt to uncover Zoids buried within the Earth to bolster their respective armies. The story picks up following second-generation Earth citizens: Leo Conrad and Buzz Cunningham, who have a chance encounter with a girl Sally Land as she flees the clutches of the Empire.