Beowulf and Grendel

I was browsing the movie production site for Beowulf and Grendel and proceeded from there to read about the difficulties they encountered during filming as recounted by Wendy Ord (assistant director).  I wondered what would have happened had Gerard Butler (Beowulf) become confused and starting singing Phantom of the Opera songs:

Night-time sharpens, heightens each sensation
Darkness ends my day's long degradation
Silently my senses
Abandon their defences
Pardon me if this sounds impolite
This sweaty warrior costume smells like shite

Slowly, sternly, Iceland in its splendour
Leaves me breathless, weary-limbed and tender
Feeling is believing
Slopes here are deceiving
Wish I had just half of Beowulf's might
I'd better book a massage for tonight

Close your eyes for your eyes will only tell the truth
And the truth is the filming schedule means
That I'm climbing and fighting yet again!
How long now till the Sarah Polley scenes?

Boldly, coldly, Iceland's whims caress me
Sore winds, more winds threaten to undress me
Frostbite feels my toes
While the sand blows up my nose
Could it get much worse here neath the northern lights?
(We could have PeTA pushing Grendel's rights)

Use your eyes as we journey to a strange, new world
Leave all thoughts of the films you've seen before
Use your eyes, let the scenery set you free
And make me your Oscar nominee

Floating, sailing, sweet intoxication
Trusting, trembling in anticipation
Let this filming end
While I still have strength to spend
Wish this wobbly Viking boat was water tight
Help me make it to my homeward flight