To celebrate this occasion the Warner Bros store is offering 20% off on all DVDs, Blu-rays and official merchandise.
The shop sells video games, official merchandise, TV show and movie DVDs and Blu-rays, as well as clothing, accessories and home décor. The new store will also be carrying exclusive merchandise from the new film, "Watchmen".
Some other franchise brands offered are Superman, Batman, Looney Toons and Harry Potter.
