Arrow keys move player in opposite direction (Camera)

Hey there!
I’m making a very simple game where a sphere jumps when I press “space” and the arrow keys move the sphere left and right.

However, when I press the left arrow key the player goes right and vice

How do I get the arrow keys to function as they should?
I think its a Camera error- but I’ll place my coding for the player in just in case.

here is my code for my player- the sphere;

using UnityEngine;
using System.Collections;

public class Player : MonoBehaviour {

private Rigidbody rb;
public float speed;
public float jumpSpeed;

// Use this for initialization
void Start () {
	rb = GetComponent<Rigidbody>();
}

// Update is called once per frame
void Update () {
	if (Input.GetKeyDown("space"))
	{
		print ("key pressed");
		MakeMeJump();
	}
}

void MakeMeJump()
{
	rb.AddForce (Vector3.up * jumpSpeed, ForceMode.Force);
}

// Update is called once per frame
void FixedUpdate () {
	float horizontalMovement = Input.GetAxis("Horizontal");
	float verticalMovement = Input.GetAxis("Vertical");

	Vector3 movement = new Vector3 (horizontalMovement, 0.0f, verticalMovement);

	rb.AddForce (movement * speed);

	Debug.Log (horizontalMovement);
	Debug.Log (verticalMovement);
}

}

You should be able to solve this by adding a ‘-’, this essentially reverses the Vector.

rb.AddForce (-movement * speed);

Take these for example:

Vector3 positive = new Vector3(4, 4, 4); 
Vector3 negative = new Vector3(-3, -3, -3);

Calling -positive would give (-4, -4, -4) and -negative would give (3, 3, 3).