Quoting movies when?
Oh, you mean the Shao Khan post thing?
No, that was along time ago when I posted that. LOL.
Anyway I went back into the MK

Konquest some dude in Outworld said Khan and Shinnok were related.
Kitana and Liu was confirmed in MK4 Liu's ending gets the point across.
Noob doesn't really have the same body as before so he is no longer related to Sub-Zero when he was alive though he was.
Kitana, and Mileena are close enough due to Mileena being her clone.
Jade, Rain, Tanya, Sindel, Kitana, are all from Edenia no relations. *other than they know each other*
Kitana and Sindel are related as Kitana is Sindel's daughter stated in UMK3/MK:T.
Reptile, and Khameleon/Chameleon are the same species.
all Kung Laos seem related to Liu Kang. THe original was his ancestor stated in MK1's substory/MK2/MK3/etc.. *not the movie the game*
Goro is related to Kintaro since he is his son stated in MK2/MK:T
Sheeva, Goro, Kintaro are all Shokans, and only Goro, and Kintaro are related from it.
Cyrax, Sektor, and Smoke are all cyborgs, who when alive could have been related but it is never stated.
Quanchi and Shang Tsung are related to the sorcerers of that one place. *stated in MK

A* No it doesn't mean they are related but still.
All Kung Laos are related.
Scorpion had a child and wife, they are unknown.
Shao Khan and Shinnok have some relation stated in MK

konquest.
Li Mei is now spiritually related to a soldier in Onaga's invinible army.
Kitana is Khan's adopted daughter.
Rain is Khan's adopted son.
Smoke and Sub-Zero may have been related once. We know they were once friends.
Jade, and Kitana are both friends.
Sareena, and Sub-Zero have a relationship. Stated through MK

konquest, and MK: Sub-Zero's mythology.
Jarek, Kano, Kabal, Kobra, and Kira are all Black Dragon members.
Mavado, and Hsu Hao are Red Dragon members.
Red Dragon members were once Black Dragon members.
Raiden is related to the other Elder Gods, hence he is related to Shinnok.
Fujin also counts thus Fujin and Raiden are related to Shinnok.
Noob Saibot, and Scorpion are both Ninja-spectors, thus they are semi-related in the Nettherrealm.
Scorpion has a person he wants to kill Quanchi due to the death of his family.
Judging by Khameleon's ending in MK:T I'm thinking she wanted to have a relationship with Reptile.
Sonya has more of a relationship with Jax since they both are Special Forces members. *Sonya and Johnny Cage isn't Cannon*
Shujinko and Bo Rai Cho seem to have a relation due to their villiage.
Moloch and Drahmin are species related as Oni.
Mileena and Baraka are Tarkatan warriors who seem to have a deeper relationship. *Who else would want a Tarkatan girl as their middle link?*
Kabal and Kira may have a secret relation judging by Kira's ending and whole story...
Tanya and Noob Saibot were really working for Shinnok. *Quanchi, Reptile, etc. Just really turned against him*
Sub-Zero, Smoke, Human Sektor, Human Cyrax, Original Sub-Zero/Noob Saibot are Lin-Kuei/were.
Kenshi, Cyrax, Sonya, Jax, and for a partial time Hsu Hao were the special forces.
Kano judging by how he acts, has some sick kind of twisted crush on Sonya . *I'm sure you know what I mean*
Ermac could be related to Kenshi due to the souls he contains in his body some of them might have been the ones Shang Tsung stole from the tomb of his ancestors.
Shang Tsung , and Shinnok are both beings that can morph.
Frost could have had a relationship with Sub-Zero. *See his face in MK

A ending? when she takes the amulet and gets frozen?*
Kai and Kung Lao (Kai I'm not sure) are related to Liu.
Now some of these are hinted others, are plain out.
Not all of them are relations but how they fit in/etc.