★ 3.9 Film
Femalien 2
1998
Same creator (Cybil Richards); both explore diner and alien
★ 5.2 Film
Emmanuelle in Space 6: One Last Fling
1994
Both explore softcore; both romance and science fiction
★ 4.9 Film
Emmanuelle in Space 3: A Lesson in Love
1994
Both explore softcore; both romance and science fiction
★ 5.6 Film
Emmanuelle in Space 4: Concealed Fantasy
1994
Both explore softcore; both romance and science fiction
★ 5.2 Film
Emmanuelle in Space 2: A World of Desire
1994
Both explore softcore; both romance and science fiction
★ 5.6 Film
Earth Girls Are Easy
1988
Both explore alien; both romance and science fiction