The play received 'mixed' reviews. = The play's reviews were 'mixed'. [=some critics liked the play, while other critics did not]
I accidentally 'mixed up' the two files. [=I put each of the files in the place where the other one should have gone]
He 'got mixed up in' a plan to destroy the government. [=he became involved in a plan to destroy the government]
(..) of would-be assassins. The American people are good people. Democrats, lndependents, Republicans and others. - How do you get mixed up that type? - l don't know. lf you're so hot, why go to strangers? What's wrong with me? Ready two. Two. Cue Howard. (..)1976 Network