This code just copy past in functions.php file

 function create_posttype() { 
 register_post_type( 'movies', 
 // CPT Options
 array( 'labels' => array( 'name' => __( 'Movies' ), 
 'singular_name' => __( 'Movie' ) ),
 'public' => true, 
 'has_archive' => true,
 'rewrite' => array('slug' => 'movies'),
 'show_in_rest' => true, ) ); 
}
 // Hooking up our function to theme setup

 add_action( 'init', 'create_posttype' ); /* * Creating a function to create our CPT */ 

 function custom_post_type() { 
 // Set UI labels for Custom Post Type
 $labels = array( 'name' => _x( 'Movies', 'Post Type General Name', 'twentytwenty' ), 'singular_name' => _x( 'Movie', 'Post Type Singular Name', 'twentytwenty' ), 'menu_name' => __( 'Movies', 'twentytwenty' ), 'parent_item_colon' => __( 'Parent Movie', 'twentytwenty' ), 'all_items' => __( 'All Movies', 'twentytwenty' ), 'view_item' => __( 'View Movie', 'twentytwenty' ), 'add_new_item' => __( 'Add New Movie', 'twentytwenty' ), 'add_new' => __( 'Add New', 'twentytwenty' ), 'edit_item' => __( 'Edit Movie', 'twentytwenty' ), 'update_item' => __( 'Update Movie', 'twentytwenty' ), 'search_items' => __( 'Search Movie', 'twentytwenty' ), 'not_found' => __( 'Not Found', 'twentytwenty' ), 'not_found_in_trash' => __( 'Not found in Trash', 'twentytwenty' ), ); // Set other options for Custom Post Type $args = array( 'label' => __( 'movies', 'twentytwenty' ), 'description' => __( 'Movie news and reviews', 'twentytwenty' ), 'labels' => $labels, // Features this CPT supports in Post Editor 'supports' => array( 'title', 'editor', 'excerpt', 'author', 'thumbnail', 'comments', 'revisions', 'custom-fields', ), // You can associate this CPT with a taxonomy or custom taxonomy. 'taxonomies' => array( 'genres' ), /* A hierarchical CPT is like Pages and can have * Parent and child items. A non-hierarchical CPT * is like Posts. */ 'hierarchical' => false, 'public' => true, 'show_ui' => true, 'show_in_menu' => true, 'show_in_nav_menus' => true, 'show_in_admin_bar' => true, 'menu_position' => 5, 'can_export' => true, 'has_archive' => true, 'exclude_from_search' => false, 'publicly_queryable' => true, 'capability_type' => 'post', 'show_in_rest' => true, );

 // Registering your Custom Post Type

 register_post_type( 'movies', $args ); 
 }

 /* Hook into the 'init' action so that the function * Containing our post type registration is not * unnecessarily executed. */ 

 add_action( 'init', 'custom_post_type', 0 );

 

?>