Using VR to watch HD movies just isn't the best of ideas. You're going to get less resolution and a likely some eyestrain from staring at something too close to you. If you really want to, though, you can try the Samsung GearVR (if you have a samsung phone) or Google Cardboard if you have a compatible phone.
After that, there just aren't any good headsets out right now. VR is cutting edge and you can't get something good this early at a reasonable price. Personally, I'd rather watch a movie on a TV or a projector anyway.