Britney costs HIMYM Silverstone!

You can dress Britney Spears up in equestrian clothing or bury her in a nurses’ garb, and nothing changes; wherever she goes, the Pop Tart causes chaos. Shortly after announcing the casting of the unstable Spears in a small supporting role on CBS’ How I Met Your Mother, Alicia Silverstone, selected recently for a multi-episode arc that may have revealed her as the long-awaited Mother of the show’s title, canceled her commitment to the show.

Silverstone’s reps reportedly fears Spears’ notoriety would overshadow Silverstone’s appearance on the show, which isn’t far-fetched. The latest word is that the female doctor Silverstone was slated to play will now be portrayed by Scrubs’ Sarah Chalke, and the storyline will center more on Spears’ character.

The good news is that Silverstone remains open to appearing on How I Met Your Mother, and the show’s creators have stated they hope to create a different character for her soon. Meanwhile, the doctor who seemed destined to become “Mother” now will be reconceived as just another ship that passes through Ted’s long night of the soul, since Chalke’s schedule was too full to accommodate anything more than one episode, since Scrubs is still in production and may even be renewed for a previously-believed-to-be-unlikely eighth season, be it on NBC or ABC.

Weekly box office for March 16, 2008

With over $45 million in gross receipts, the celebrity-voice-filled Dr. Seuss’ Horton Hears A Who! easily won the weekend box office war, drawing in around $29 million more than its nearest competitor, 10,000 BC, which took in only $16.4 million in its second week of release.

Few people made a directbuy of tickets to one of the other two main first-week releases, Never Back Down, which drew only $8.6 million, but the most disappointing bow was Doomsday, which was indeed doomed when it debuted to only $4.7 million, good enough only for seventh place.

Underdog favorite Juno stayed within the Top 15 movies, adding $1.2 million to its $139 million plus total over 15 weeks of release.