Vlad, for what it's worth, I like the intro but I also think it's too long. Take that for what it's worth; you're the artist and you're the one who has to be happy with the song. I like the song, it's very catchy and the performances are all great.
I did have problems understanding the vocals, it's like they're clear but not, if that makes any sense to you. Perhaps too much reverb or maybe some fighting for the same frequencies is going on. It's a pretty busy track with a lot of stuff going on so it seems to me that your biggest challenge is getting some clarity across all the instruments and vocal parts.
Really nice song.
I think eph221 is referring to the part about relationships when he says he's already answered your question. Just about anybody on the planet would know more than I do about how to sell a song to filmmakers or anybody else for that matter.
Good luck!