Query related acts

// WP_Query arguments
$args = array(
	'post_type'              => array( 'act' ),
	'nopaging'               => true,
	'posts_per_page'         => '-1',
);

// The Query
$related_acts = new WP_Query( $args );

// The Loop
if ( $related_acts->have_posts() ) {
	while ( $related_acts->have_posts() ) {
		$related_acts->the_post();
		// do something
	}
} else {
	// no posts found
}

// Restore original Post Data
wp_reset_postdata();