Well... It depends on how you look at it.
Yeah, I think that's worth it.
Actually, it's really not that bad... Unless you have ANY SHRED of respect for the animated series.
See, in the movie Lex allies with Brainiac... Which seems unlikely after what happened in TAS. Also, Lex & Brainy's voices have been changed and Lex is a friggin idiot.
That being said, the animation is solid and it is entertaining... Just a massive stretch for continuity.