A Javascript trying to access an image effect C# script

I'm just trying to get access to the color correction curve script (C#) that is attached to the main camera with my PlayerMovement script (JavaScript). I keep getting the error not member of object.

 #pragma strict
 
 var Speed : float;
 var colorCorrection;
 private var Movement : Vector3;
 var RB2D : Rigidbody2D;
 
 function Start () 
 {
     colorCorrection = Camera.main.GetComponent("ColorCorrectionCurves");
     RB2D = GetComponent(Rigidbody2D);
 }
 
 function FixedUpdate () 
 {
     if (Input.GetKey("d"))
     {
         Movement = new Vector3 (1.0f, 0.0f, 0.0f);
         RB2D.AddForce (Movement * Speed);
     }
 
     if (Input.GetKey("a"))
     {
         Movement = new Vector3 (1.0f, 0.0f, 0.0f);
         RB2D.AddForce (Movement * -Speed);
     }
 }
 
 function OnTriggerEnter2D(other : Collider2D)
 {
     if (other.gameObject.tag == "ImageWall")
     {
         colorCorrection.enabled = false;
     }
 }

Thank you in advance.