How to import a movie texture and apply it without stretching?

I do have unity pro and I have been importing movie textures lately, but when I insert one, if the size of the game object does not fit the video, it stretches. How can I prevent it from stretching or how can I choose the perfect game object size?

You can set the texture property to ‘clamp’, but best to size it right. Get the texture width and height, and use that to scale a square mesh appropriately. That is, to set the scale on the containing game object’s transform which holds a square mesh. Or if you are adventurous, construct a mesh from scratch.