@23Skiddoo^ I'm just looking at it as an alt-universe take on DW. You can have a Batman or Spider-man movie which is separate from the comics and reaches a wider interest but provokes interest in the comics and hopefully makes them sell more. Try to think of a DW movie as just being another adaptation of a classic franchise but in a different medium.
At the end of the day, if this movie gets made, it doesn't mean that someone will go round and wipe out all of the tv series from existence.
No, but there are still risks. First, just because it's got David Yates' name on it is no guarantee it won't suck. Or that it'll be a good movie that no one will bother going to see. Either of which could have a negative impact on the TV series.
Or, the film could be Avatar 2.0, be a massive hit, and everyone will start looking at Johnny Depp (or whomever) as THEIR Doctor, completely undermining Matt Smith or Paterson Joseph or whomever is the Doctor in the lowly TV series. Worst case scenario: BBC Worldwide decides the future is in the 3-D movie business (you know they'll do that crap with the movie) and so the decision is made to retire the TV series. Do we really want that?
Granted, the same risks would apply if a Matt Smith movie were made: a failure might result in the franchise being retired; a huge success might result in the TV series being retired in favor of film.
Meanwhile, comics and films are entirely different media, and have never been seen as 100% faithful to each other anyway. But this is to my knowledge the first time since in fact the Peter Cushing Dr. Who movies that a movie has been made based upon a still-running TV series that is not based on the ongoing continuity of the said TV series. And I just find it pulls the rug out from under the TV show, is all. Especially when they're planning big things for 2013 which, for all we know, might have included a movie. But maybe not anymore.
I'm not going to lose sleep over it. Considering the last 45 years of plans for big-screen Doctor Who films have had a zero-percent track record of actually being made (even the one written by Tom Baker at the height of his powers), I won't start "worrying" until the cameras actually begin rolling.
Alex