The UK film industry contributes billions to the UK economy each year. It has several component parts including development, production, facilities, distribution, exhibition and export. While production companies are often temporary, there are over 400 permanent companies overall in the UK film industry, including production, distribution and exhibition companies. Some major studios in the sector include Tri-Star Pictures, a film production and distribution studio owned by Sony, and DreamWorks Animation, which has created highly successful animated franchises like Shrek and How to Train Your Dragon. The film industry benefits from links to other industries such as gaming and advertising/marketing.