The name is actually pronounced 'wee-ja', contrary to the popular 'wee-gee'. Charles Kennard, founder of the company manufacturing the boards, claimed he learned the name "Ouija" from asking the board what it wanted to be called.
When re-shoots went underway, in the process of drastically changing Doris Zander's backstory, two new characters were created including her sister and mother. Lin Shaye, who plays Paulina Zander, was not in the original version of the film and was cast for the re-shot footage.
Although this is the first film theatrically released starring Shelley Hennig, she filmed this after completing her work on Unfriended (2014) which was previously released as Cybernatural making it her proper film debut (technically). It would be theatrically released about 6 months after the release of this film.
In the original unaltered version of the film, Doris Zander had a much different look to her. In the original cut she took the appearance of a young girl with half of her face burnt while always carrying a doll. The re-shoots version is a rotting girl with sewn lips.
Marks the second horror film Douglas Smith appears in during 2014. The other being Stagefright. Both films were released in 2014, with Stagefright being released on VOD prior to Ouija's theatrical release, making Ouija his first theatrically released horror film.
The trivia items below may give away important plot points.
The first trailer for the film was released with the theatrical release of The Fault in our Stars (2014) containing alternate footage. A new trailer was released in the summer containing new scenes. In an interview, Olivia Cooke stated that about 50% of the film was reshot due to a negative reaction from test audiences, as a result Universal ordered a week's worth of re-shoots during the summer 4 months before its theatrical release which drastically altered the original plot. The original cut contained a different assortment of footage including an alternate death scene for Debbie where she instead falls to her death instead of hanging herself (which is why the chandelier is swinging when Pete sees it because she struck it while falling) along with the most advertised scene where Sarah's eyes roll back and she says "it's not even real okay? It's just a game". Nona was also supposed to have a more prominent role in the film as it implied she becomes possessed in the promotional material.