Diya Maskey and Nisha Adhikari are the two actresses playing the two young women.
"It's two individuals falling in love and facing all the controversy and restrictions, and mental, emotional and physical traumas of being a lesbian in Nepal," Adhikari told AFP.
"It's a simple love story with a lot of complications."
Adhikari, 25, says the film is the first one which deals with anti-gay discrimination.
Even if it is not the first time that one can see LGBT roles in Nepalese films, it is the first time that they are not ridiculous roles, bad taste, to make just people laugh.
"The entire movie is based on the trauma -- what it is like not being able to come out and live your life because there are so many restrictions," Adhikari said.
"There is no liberty in not living your life the way you want, irrespective of who you are attracted to sexually. This movie will be an eye-opener for a lot of people who have just viewed these issues very superficially."
Sunil Pant, the only openly gay parliament's member, said "Nepal has always been tolerant (...) ready to treat each other equally."
Nepal is a country which progress. Its new consitution will define marriage between two adults, regardless of gender, and to outlaw discrimination based on sexual orientation.
Snow Flower seems to be a great movie, I hope we will have also the possibility to watch it.