After movie rights deals with Universal Pictures and Columbia Pictures expired, id Software signed a deal with Warner Bros. with the stipulation that the movie would be greenlit within 12 months. Warner Bros. lost the rights, which were subsequently given back to Universal Pictures who started production in 2004. The film was an international co-production of the United States, United Kingdom, Czech Republic, and Germany. In an interview with executive producer John Wells, he stated that a second film would be put into production if the first was a success at the box office. Ticket sales for the opening weekend totaled more than US$15.3 million, but dropped to $4.2 million in its second weekend.