3D Cinamatic Movies

is it possible to make those cinamatic movies with g-max? I know you can with 3DSMax but what about g-max?

Unfortunately you can't since Gmax does not come with the ability to render anything that you make, although you could probably export it and use it with a program that does render to make cinematics.

do you know anything thats free and does render?

This is just an idea, but you could try to download the trial of 3ds max and transfer the animations, (export all the models) then render before your 30 days is up.

could I still make a movie in Gmax that isn't rendered and just have no skins? because all I want to do right now is make a test thing

Try OpenFX. I used it before I got 3DS Max recently from a friend, and it is quite good. It can even view and save in .3ds and other filetypes.

is there something that can change 3ds or Obj or almost anything to a gmax file