outtake

 Except.  R. of Brunne.  [1913 Webster]

 A portion of a recorded performance which is eliminated in the editing process and is not included in the final commercial presentation. The recording may be audio or visual or both, but is usually of a film or television performance. Outtakes often include mistakes or lower quality performances, and sometimes blunders. The latter type are occasionally presented separately to the public for amusement.  [WordNet 1.5]