$criteria = craft()->elements->getCriteria(ElementType::MatrixBlock);
$criteria->status = null;
$find = $criteria->find();

$criteria = craft()->elements->getCriteria(ElementType::MatrixBlock);
$criteria->fieldId = craft()->fields->getFieldByHandle('matrixFieldHandle')->id;
$criteria->ownerId = $entry->id;
$criteria->status = null;
$blocks = $criteria->find();