Have a green screen no film but soundtrack

On the remote will be either a button marked "status" "display" or "sound mode". Push that when the DVD is playing. If you see "1 English" or "2 English" or even "commentary" in the OSD. Then you have found the way to change the soundtrack. Pressing the up, down, or sideways arrow keys should take you to the place of the "1 English" etc and highlight it. You should then be able scroll to one that turns off the commentary off. For example 1 English might meant just the normal soundtrack in English, 2 English might add subtitles. If the film has other languages these will also appear. Some might have Dolby soundtracks and other modes so if you want these make certain you select them.
Sorry I can't be precise as to which button to press as you didn't state make or model number.

Here is the soundtrack listing on the films website.

Arrival Secondbase Film Presents Freeride Mountain Bike Film

When you want to watch just keep your hand there, is that a bad thing to you?

It is the polarizer film on the glas closest to the prisma behind the green panel which must be replaced. Any high quality polarizer film could be used but its some work to do this.

No, the ViviCam 3330 does not record any sound. You can add a soundtrack using video-editing software on a computer, but you cannot record one on this camera.

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The 5010 is designed primarily as a still camera, with some video capabilities grafted on. As such it records images not sounds. You can add a soundtrack using video-editing software on a computer, but you cannot record one on the camera.

See the following links:

iTunes Soundtrack Page
10 Movie Soundtracks Worth Buying on iTunes

Sorry, but the ViviCam 5385 does not record any sound when in video mode. You can add a soundtrack using video-editing software on a computer, but you cannot record one on the camera.

Sorry, the ViviCam 5385 does not record sound in video mode. You can add a soundtrack using video-editing software on a computer, but you cannot record one on the camera.

I know this wasn't the answer you wanted to see, but there it is.