Space Shooter Tutorial Player Won't move.

At lesson 5 I can’t get the PlayerController.cs script to work, i can run the game , no compiler errors but also no movement;
Here is my code:
At lesson 5 I can’t get the PlayerController.cs script to work, i can run the game , no compiler errors but also no movement;
Here is my code:

using UnityEngine;
using System.Collections;

public class PlayerController : MonoBehaviour {
	private Rigidbody rb;

	void Start () {
		rb = GetComponent<Rigidbody> ();
	}
	void FixedUpdate () {
		float moveHorizontal = Input.GetAxis ("Horizontal");
		float moveVertical = Input.GetAxis ("Vertical");

		Vector3 movement = new Vector3 (moveHorizontal, 0.0f, moveVertical);
		rb.velocity = movement;
	}
}

uncheck the “Is Kinematic” checkbox!! i had the same issue