Actually the singing epitomises the problem with the movie.It was flabby and self-indulgent and given to the same awkward slapstick comedy moments that big-screen Trek is prone to (the hospital trolley chase of STIV
comes to mind).
Too many loose ends (has B4's presence ever been explained?) and some great chances to nod to the fans were wasted(The inclusion of,for example,Tomalek or Sela.Things that would have sailed over the heads of the casual audience but would have meant a great deal to Trekkers.)
And I distinctly remember whoops of laughter at the photograph of Hardy in his cadet uniform.