The best films for a group don't flatten the experience - they create one. You want something that generates opinions, debates, a reason to stay up later than planned.
The 80s and 90s are where a lot of cinema's DNA was written. Films that set the templates still running today.
Great sci-fi uses the impossible to illuminate the real. Distance from the present is what allows these films to say things that otherwise couldn't be said.
After defeating Frieza, Goku returns to Earth and goes on a camping trip with Gohan and Krillin. Everything is normal until Cooler - Frieza's brother - sends three henchmen after Goku. A long fight ensues between our heroes and Cooler, in which he transforms into the fourth stage of his evolution and has the edge in the fight... until Goku transforms into a Super Saiyan.
Johnny Smith is a schoolteacher with his whole life ahead of him but, after leaving his fiancee's home one night, is involved in a car crash which leaves him in a coma for 5 years. When he wakes, he discovers he has an ability to see into the past, present and future life of anyone with whom he comes into physical contact.
In the last days of 1999, ex-cop turned street hustler Lenny Nero receives a disc which contains the memories of the murder of a prostitute. With the help of bodyguard Mace, he starts to investigate and is pulled deeper and deeper in a whirl of murder, blackmail and intrigue.
A "metal fetishist", driven mad by the maggots wriggling in the wound he's made to embed metal into his flesh, runs out into the night and is accidentally run down by a Japanese businessman and his girlfriend. The pair dispose of the corpse in hopes of quietly moving on with their lives. However, the businessman soon finds that he is now plagued by a vicious curse that transforms his flesh into iron.
A soldier from Earth crashlands on an alien world after sustaining battle damage. Eventually he encounters another survivor, but from the enemy species he was fighting; they band together to survive on this hostile world. In the end the human finds himself caring for his enemy in a completely unexpected way.
The science fiction films that last are the ones where the ideas are inseparable from the story. Not grafted on â woven in. These films are genuinely about something.
12-year-old David is accidentally knocked out in the forest near his home, but when he awakens eight years have passed. His family is overjoyed to have him back, but is just as perplexed as he is that he hasn't aged. When a NASA scientist discovers a UFO nearby, David gets the chance to unravel the mystery and recover the life he lost.
Val McKee and Earl Bassett are in a fight for their lives when they discover that their desolate town has been infested with gigantic, man-eating creatures that live below the ground.
Dr. Gero's Androids #13, #14, and #15 are awakened by the laboratory computers and immediately head to the mall where Goku is shopping. After Goku, Trunks, and Vegeta defeat #14 and #15, #13 absorbs their inner computers and becomes a super being greater than the original three separately were. Now it is up to Goku to stop him.
When an alien takes the form of a young widow's husband and asks her to drive him from Wisconsin to Arizona, the government tries to stop them.
Mulder and Scully, now taken off the FBI's X Files cases, must find a way to fight the shadowy elements of the government to find out the truth about a conspiracy that might mean the alien colonization of Earth.
These are films that earn their laughs - not through cheap gags, but through character, timing, and an understanding of what actually makes people laugh.
Great science fiction stays with you because the questions it raises don't have answers. These films plant something and leave it to grow.