So i have rewatched the video and reread my code several times now but I cannot get the frog to move in play mode.

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class PlayerMovement : MonoBehaviour {

    private Animator playerAnimator;
    private float moveHorizontal;
    private float moveVertical;
    private Vector3 movement;
    private float turningSpeed = 20f;
    private Rigidbody playerRigidbody;




    // Use this for initialization
    void Start () {

        // Gather components from the Player GameObject
        playerAnimator = GetComponent<Animator> ();
        playerRigidbody = GetComponent<Rigidbody> ();
    }

    // Update is called once per frame
    void Update () {

        // Gather input from the keyboard
        moveHorizontal = Input.GetAxisRaw ("Horizontal");
        moveVertical = Input.GetAxisRaw ("Vertical");

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

    }

    void FixedUpate () {

        //if the players movement vector does not = 0... 
        if (movement != Vector3.zero) {

            //...then create a target rotation based on the movement vector...
            Quaternion targetRotation = Quaternion.LookRotation (movement, Vector3.up);

            //and create another rotation that moves from the current rotation to the target rotation
            Quaternion newRotation = Quaternion.Lerp (playerRigidbody.rotation, targetRotation, turningSpeed * Time.deltaTime);

            //..and change the players rotation to the new incremental rotation...
            playerRigidbody.MoveRotation (newRotation);

            //then play the jump animation.
            playerAnimator.SetFloat ("Speed", 3f);
        } else {
            //Otherwise dont play the jump animation
            playerAnimator.SetFloat ("Speed", 0f);
        }
    }

}