For WarStar, Goseiger producers decided to give the villains names from Science Fiction movies. I will cover the others later. Unlike Boukenger monsters, I am not comparing the monster design with the poster, just the names but put pictures for you to know what I am talking about. I don't believe the designs of the monsters are directly inspired by the movie, as they are supposed to be based on insects.

Mizorg of the Clump
Mizogu's name is from the 1977 film
Close Encounters of the Third Kind, which in Japanese is
Michi to no Sogu. Michitonosogu = Mizorg.

Zaruwakku of the UFO
Zaruwakku's name is from the 1968 film Planet of the Apes, which in Japanese is Saru no Wakusei. Saruwakusei = Zaruwakku. Not technically a outer space alien movie.

Yuzeikusu of the Ice & SnowYuzeikusu's name is from the 1982 film
The Thing, Yusei kara no Buttai Ekkusu. Yusei and Ekkusu becoming Yuzeikusu.

Mazuata of MusicMazuata's name is from the 1996 comedy film
Mars Attacks! by Tim Burton.

Uchuseruzo of InfluenzaUchuseruzo's name is from
The War of the Worlds, which in Japanese is called Uchu Senso. Uchusenso = Uchuseruzo. The War of the Worlds started as a radio play by H.G. Wells that made US citizens actually believe it was real. A movie was later made.
Hidou of Swift Runner
Hidou's name is from 1987 film The Hidden, an obscure reference. It is not highly remembered but I heard it is a good film. I used a foreign poster because I liked the image.

Irian of the Queen BeeIrian's name is from the 1979 film
Alien, also by James Cameron.

Kurasunigo of 5000°C
Kurasunigo's name is from the 1990 Japanese film Solar Crisis, Kuraishisu Nii Maru Go Maru. This is the first reference to be a Japanese film and not American.

Yokubabanga of Electric Shock
His name is from the 1987 film
*batteries not included. In Japanese it is Nyū Yōku Higashi Hachibangai no Kiseki.
Great King Month Drake
Month Doreiku's name comes from 1966 show Star Trek. Sutā Torekku = Monsu Doreiku. I used the 2008 movie poster because it was vertical and I couldn't find a vertical poster of the original series.

Dereputa from MeteorHis name came from the 1987 film Predator.
Buredoran of the Comet
Buredoran obviously comes from the break-through Blade Runner, the 1982 film. Also, this is not an outer space alien movie.