I never even bothered to watch Dumb and Dumber -- it just didn't look interesting to me at all -- but I don't get the criticism ID4 tends to get around here; I thought it delivered exactly what it promised, and think that nitpicking its scientific inaccuracies and such is kind of missing the point. But that's just me.
Bad science is not even the worst problem with the ID4. It's the overly cheesy "drama" and plot, spiced with ridiculous overblown patriotism. Don't get me wrong, in a sense I enjoyed the film. But I enjoyed it same way one could enjoy "Plan 9 From Outer Space", it is so incredibly bad, that it becomes good. I am not convinced that it was the intention of the film makers, though. However, when bloody president of America flies with a fighter jet to kick some alien arse, you just have to laugh.
I most sincerely hope so.Whatever the case, I'm not really expecting Star Trek to resemble either of them too closely.