preg_match_all question

Hi All, Having an issue with regular expressions, never been my strong point! The following pattern only picks up one instance per line, if more than one instance exists all text from first {{ to last }} is included, can anyone point out where I am going wrong? preg_match_all("/\{\{lang:(.*)\}\}/", $str, $tags); Here is an example of what needs to be processed <ul><li><span>{{lang:PA1Feature1}}</span></li><li><span>{{lang:PA1Feature2}}</span></li></ul> <ul><li><span>{{lang:PA2Feature1}}</span></li><li><span>{{lang:PA2Feature2}}</span></li></ul> TIA Phil.