1.The charcoal drawings in the movies are drawn by Jean Marc Rochett, the artist of the original graphic novel, ‘Le Transperceneige’
2.Mason was supposed to be a male character, but went through a gender change as Tilda Swinton was casted for the role.
3.Jake Gyllenhaal and Dust Hoffman couldn’t make into the movie due to their scheduling issues. They could have played Curtis and Wilford.
4.The last one to be casted was the role of Wilford. it was Park Chan-Wook who suggested Ed Harris for the role.
5.Wilford is bisexual.
6.They built a 500m set-train for the movie.
7.Franco elder and Franco the younger could be brothers, or lovers.
8.Tilda wanted to have a 1:1 scene with Song Kang-Ho, but it didn’t happen.
9.Chris Evans personally contacted director Bong for the role.
10.Tilda was considering a retirement, but changed her mind after shooting Snowpiercer.
11.All the torches were real.
12.Tilda uses yorkshire accent for the role, like margaret thatcher.
13.The name ‘Edgar’ is inspired by the director Edgar Wright.
14.Octavia Spencer didn’t breathe at all while acting her character’s death.
15.The name ‘Yona’ is from the Bible.
16.The train-babies like Yona developed animalistic hearing skills, living in the train.
17.Yona is the daughter of the leading woman of ‘the frozen seven’.
18.Bong wanted to put groups of children under the floor for the climax scene but the budget didn’t allow it.
19.The thing that Nam saw through the window could be a bird, or a polar bear.
20.There was a narration done by grown-up Timmy but it was cut.
21.Mason is from the tail or the middle section. she worked as a cleaner and got noticed by Wilford. that’s how she made it to the front section.
22.Jamie Bell enjoyed playing with Mason’s prop boobs.
23.Chris Evans asked to be left alone in the train for 4 hours to get into a right emotion for his monologue.
24.Jamie Bell says Chris Evans was practicing his monologue for hours in his hotel room, looking at the mirror.
25.Gillam and Grey is in a gay relationship, according to Bong’s imagination.
26.The martial director Julian Spencer referenced his famous sauna scene from ‘Eastern Promise’.
27.Bong wanted the name for the korean character (Namgoong Minsu) to be hard to pronounce.
28.The actress who played Claude is not a professional actress. she’s an art student who didn’t know what kind of movie she was in for, and later was shocked to see Chris Evans in the set.
29.Rebel Wilson was supposed to play Claude, but there was a scheduling problem.
30.Mason’s glasses are from Tilda’s twins.
31.The protein blocks are mixture of seaweed and sugar. Jamie Bell had the hardest time eating them.
32.Chris Evans worried about how ‘silly’ it would look to be slipped on a dead fish during a fight scene. Bong had to explain ‘the beauty of mistakes’
33.The final scene was filmed in Austria.
34.Ed Harris struggled with his lines in the first day and got very angry. Bong says he couldn’t stop laughing at Ed Harris losing his shit.
35.Harvey Weinstein demanded to delete the ‘fish blood scene’ but Bong refused to cut it.
36.Unlike the audience expected, Park Chan-Wook was not involved in the shooting at all as he was busy directing ‘Stoker’.
37.Snowpiercer might be the last movie shot with film camera in Korean movie history.
38.Bong wanted to build a zoo in the train, but the budget was short.
39.Jamie Bell was afraid to do the stunt, so Bong did the stunt himself to show how safe it was. Jamie Bell couldn’t complain about stunts afterward.
40.Bong pretended not to understand english when the American producers asked him to cut scenes out.