Zakary Thaks are a relatively obscure garage band from Corpus Christi Texas who had some regional success in the mid-1960's.
Their signature song is a real proto-punk gem -- "Bad Girl" released locally in 1966 then picked up by Mercury Records. It later made its way to the Pebbles compilation which is how I found it. It is super fast for that era and terrific in all regards.
What is that film in the background of the "Bad Girl" video? Of course it's the 1969 Italian movie "Scacco alla Regina". It's truly amazing what we do for our readers here at WYMA!