Invasion from Inner Earth (1974)

A small-town doctor learns that the population of his community is being replaced by emotionless alien duplicates.

The first manned expedition to Mars is invaded by an unknown life form, which stows away on the rescue ship.

A peaceful alien planet faces annihilation, as the homeless remainder of the human race sets its eyes on Terra. Mala, a rebellious Terrian teenager, will do everything she can to stop it.

A parasitic alien soul is injected into the body of Melanie Stryder. Instead of carrying out her race's mission of taking over the Earth, "Wanda" (as she comes to be called) forms a bond with her host and sets out to aid other free humans.

Using massive piloted robots to combat the alien threat, earth's survivors take the fight to the invading alien force lurking in the depths of the Pacific Ocean. Nearly defenseless in the face of the relentless enemy, the forces of mankind have no choice but to turn to two unlikely heroes who now stand as earth's final hope against the mounting apocalypse.

Video game expert Alex Rogan finds himself transported to another planet after conquering the video game The Last Starfighter, only to find out it was just a test. He was recruited to join the team of best Starfighters to defend their world from the attack.

After discovering he has powers, 11-year-old Jonathan Kent and assassin-turned-Boy-Wonder Damian Wayne must join forces to rescue their fathers (Superman & Batman) and save the planet from the malevolent alien force known as Starro.

Ba'al travels back in time and prevents the Stargate program from being started. SG-1 must somehow restore history.

Dr. Frankenstein and his monster both turn out to be alive after being attacked by an angry mob. The now-chastened scientist attempts to escape his past, but a former mentor forces him to assist with the creation of a new creature.

The feature-length pilot for this Emmy award-winning show. Babylon 5 is the latest in a series of space stations built by humans. The Vorlon ambassador, Kosh, has been poisoned. It is the new commanding officer, Jeffrey Sinclair, who has the responsibility of finding the culprit. Otherwise, the space station will fail in its role of bringing many alien races together.