Page returning ID from array, how to return the correct values for post in acf wordpress

I played with the code for a bit longer and managed to get it working. Answer below

add_filter( 'gform_pre_render', 'freetrial_studios' );
add_filter( 'gform_pre_validation', 'freetrial_studios' );
add_filter( 'gform_pre_submission_filter', 'freetrial_studios' );
add_filter( 'gform_admin_pre_render', 'freetrial_studios' );
function freetrial_studios( $form ) {

foreach ( $form['fields'] as &$field ) {

    if ( $field->type != 'select' || strpos( $field->cssClass, 'studio-list' ) === false   ) {
        continue;
    }

    $studio_id = $GLOBALS['post']->ID; 
    $studios = get_field('field_557a974776dd2', $studio_id);

        if( $studios ) {

            $choices = array();

            foreach ( $studios as $studio ) {

                // Populate the drop down field with values                         
                $choices[] = array( 'text' => $studio->post_title, 'value' => $studio->post_title );
                $field->choices = $choices;   
            }

            $field->placeholder="Select a Studio";
            $field->choices = $choices; 
        }       
}
return $form;
}