WordPress slug without custom post type slug

You must register your post type movie in init.

register_post_type('movie', $args);

To replace the movie from post link use the below code.

function remove_my_post_type($post_link, $post, $leavename) {    if ($post->post_type != 'movie' || $post->post_status != 'publish') {        return $post_link;    }    $post_link = str_replace('/' . $post->post_type . '/', '/', $post_link);    return $post_link;}add_filter('post_type_link', 'remove_my_post_type', 10, 3);

After that you can set your post type shold be like a default post or page.

function set_my_post($query) {    if(isset($query->query['post_type'])){        return;    }    if (!empty($query->query['name'])) {        $query->set('post_type', array('post', 'movie', 'page'));    }}add_action('pre_get_posts', 'set_my_post');

I do not think there is straight forward solution this. If you need this so badly you can use Custom Rewrite For Post Slug

Have you tried:

'with_front' => bool Should the permalink structure be prepended with the front base. (example: if your permalink structure is /blog/, then your links will be: false->/news/, true->/blog/news/). Defaults to true

https://codex.wordpress.org/Function_Reference/register_post_type