Absolutely.
(sarcasm) Wouldn't it just suck if they were to use the TV show successes to launch their movies instead of keeping them separate? (/sarcasm)
Yep. Because the Flash film has nothing to do with the TV series.
Though I would like to see them expand the Multiverse and say all the versions of Batman, Superman, etc either from Smallville or films or Gotham, and the upcoming JLA film, are all part of it and exist.