In addition, Valert runs the firm's Technology/Media/Commercial Practice in Central and Eastern Europe. Prior to joining DLA Piper over a year and a half ago, he was at the Prague office of British law firm CMS Cameron McKenna, where he built up a media practice and opened a Sofia office.

Valert continues to do IP protection work for Warner Bros in the Czech Republic in relation to the Harry Potter films, and has worked in similar capacities for Paramount, Disney, the Discovery Channel, and the Motion Picture Association of America.

More recently, Valert added the title of producer to his CV, with the new Vladimir Michalek film Parents and Children, which premiered in the Czech Republic in March. Valert is currently working on foreign distribution and prime festival placement for the film.