My mom told me that she watched a movie a couple years ago (maybe 4 years) in it, a guy (medium size, brown hair) and a girl (normal size and medium length brown hair) work in a company.
They were contracted by this company to do some kind of calculations. My mom does not remember what was about, but those calculations opened a door to another world. But it was like, they put their hand to a glass (maybe some kind of transparent wall) and with the calculations they were able to go to the other side. The other side looked like an office, a long office.
At the end, the guy did not get the girl, apparently the girl was very involved with the company or something like that.
At the beginning, the guy and girl didn't like each other, but then eventually they did.
Any ideas? It is not the movie Upside Down.