movie on 3650

hello i'm new and i have a question,i want to play a movie on my nokia 3650,so i searched on the forum and i found mobiclip player,but then i saw that you have to pay now for the converter,then i found pv player (you have to pay to),so i looked for some converters for real one player who is standard on my phone.i tried xenon,nokia converter and now i'm trying helix producer plus 9,but i'm afraid it won't work either.I don't really now if i have to convert it to .3gp or .rm?and if i need to update my real one player but i can't find that.my phone won't install the helix player to,so if anybody can help me plz with a good converter or a freeware player + conveter ,thx a lot