I haven't met an actor who hasn't done at least one role they regret and will willingly tell you how much they loathed it. It's easy to say, well if she didn't like it she shouldn't have taken it, but if it's the choice between taking a movie role (in a well known but cheesey franchise) or dragging yourself round to eight auditions a day during pilot season only for them to look you up and down, decide your not right before you read, and show you the door, you'd take the naff movie role too.
They all, at some point, particularly the ones who suddenly find themselves the subject media focus with little preperation, say something stupid. I've had moments with clients when you roll your eyes and think, 'really, you can't be so stupid as to say that out loud to a journalist' but they do. Junkets are a nightmare because it's so relentless and they have to have the same conversations hundreds of times over, often I think they get tired of repeating themselves and something slips out.
She let her guard down once, said something she probably regreted the moment she said it, for the media to then latch onto that and perpetuate the problem (Law & order quote and Elm Street seem to be on many websites etc today) is what they do. It does nothing but build the barrier between press and subject even higher, I've seen it happen. They push something tiny into something big once and next time they expect a warm welcome and all the fabulous secrets. Drives me nuts.