GUI depth change!!

hi i have a script for scene loading in background while show a full screen image with a waiting video. but the problem is if the image is stretched it covers the loading video too, i want to show the loading video on the above of the image. can anyone help me out!! here is my code (c#), i just put a part of the code where the movie texture and 2d texture function with fade. if you need full code please leave a comment.

     void OnGUI()
     {        
            PlayVid.loop = true;
        PlayVid.Play();
     GUI.DrawTexture(new Rect (Screen.width - 260,Screen.height - 110,260,110), PlayVid);
 
         GUI.depth = guiDepth;
         if (splashLogo != null)
         {
             GUI.color = new Color(GUI.color.r, GUI.color.g, GUI.color.b, Mathf.Clamp01(alpha));
             GUI.DrawTexture(splashLogoPos, splashLogo);
             if (alpha > 1.0f)
             {
                 status = FadeStatus.FadeWaiting;
                 timeFadingInFinished = Time.time;
                 alpha = 1.0f;
                 if (splashType == SplashType.LoadNextLevelThenFadeOut)
                 {
                     oldCam.depth = -1000;
                     loadingNextLevel = true;
                     if ((Application.levelCount >= 1) && (levelToLoad != ""))
                     {
                         Application.LoadLevel(levelToLoad);
                     }
                 }
             }
             if (alpha < 0.0f)
             {
                 if (splashType == SplashType.FadeOutThenLoadNextLevel)
                 {
                     if ((Application.levelCount >= 1) && (levelToLoad != ""))
                     {
                         Application.LoadLevel(levelToLoad);
                     }
                 }
                 else
                 {
                     Destroy(oldCamGO); // somehow this doesn't work
                     Destroy(this);
                 }
             }
         }
     }