error CS0119

So I’m really super new to C# and Unity, but hey, everyone needs to start somewhere right?
Anyway, where in the following script is the error?
Error message: “error CS0119: Expression denotes a type', where a variable’, value' or method group’ was expected”

using UnityEngine;
using System.Collections;

public class PlayerController : MonoBehaviour 
{
	void FixedUpdate ()
	{
		float moveHorizontal = Input.GetAxis("Horizontal");
		float moveVertical = Input.GetAxis("Vertical");

		Vector3 movement = new Vector3(moveHorizontal, 0.0f, moveVertical);

		rigidbody.AddForce(Vector3);
	}
}

rigidbody.AddForce(movement);