1)There clearly is no rule that US distributor of foreign films can't be lisited in the infobox. Template:Infobox film
 2) USA is the extremely important movie market in the world. An US theatrical release can help a film to get more revenue in even other countries.  These two article explains more.
http://www.screendaily.com/news/opinion/the-us-deal-conundrum/5004159.article
http://www.screendaily.com/reports/features/the-foreign-fallout/5013522.article
 3) The the wiki pages of The Young Victoria and Pride & Prejudice also display their USA distributors on their infoboxs, and those wiki pages are rated as Good articles .  

   10:06am, 22 May 2012 (UTC)