search wp custom post types too

cpt-search.php

<?php
// hook into wordpress search function
add_filter( 'the_search_query', 'aggregated_search' );// Define what post types to search

function aggregated_search( $query ) {
	if( $query->is_search ) {
		$query->set( 'post_type', array( 'post', 'page', 'feed', 'attachment', 'movies', 'quotes' ));//define search types
	}
	return $query;
}

//via: http://new2wp.com/noob/wordpress-search-custom-post-types/