Make up words to the instrumental theme song of a movie that describe that movie, then try to guess that movie.

YUP!

i bought ... a bad horse ♬
i dueled ... my step-son
now i've ... got one leg
this film's ... three hours

Barry Lyndon

We'll snort some coke
And gobble some valium
And fuck over some clients
And behave really badly

And then we'll do it again
And again
And again
And again
And again

And again

The Addams Family?

We see dinosaurs
Diplodocuses
Oh shit there's a t'ranosaurus rex

We've escaped t-rex
Now there are raptors
It's ok t-rex has eaten them

No, no, the rules of made-up themes are that they should contain as few as possible words that aren't in the title. Eg 'he's a robot/ he's a cop/ he's a robocop' (NB this is in my head about 90% of the time.)
(the other 10% is 'it's jurassic park, not just any park, it's jurassic park')

admittedly this makes this game stupidly easy.

Well I was just quite proud of the fact I basically gave a synopsis of the entire plot there.

OK how about

He has a big ring
He's the lord of the rings
All the rings bow down to him

I was onnnnce really baad ♬
Now I'm prooooo grammed for goooo-oood
Now I knowwww why you cry
Hasta la viiiiiista

I am just a whistling dude ♬
whis-tl-ing, whis-tl-ing
Elsie Beckmann what a pretty ball that you have!

^get that ready when they remake it with Paul Giamatti

We are riding in the taxicab
across the bridge
We are riding in the taxicab
across the bridge
And yes this TV and this not the movies
(oh no, oh no)
And this is just a TV show but
we love it so
(love it so-o-o)
Danny DeVito
(o-o-o-o)

star wars
if they should bar wars
please let these star wars
staaaaaaaay

They are not
They are not
They are not
sad lands,

They are not
They are not
They are not
glad lands,

They are just
They are just
They are just
bad lands,

Baby come
Baby come
Baby come
be bad,

You and me
You and me
You and me
be bad,

In a land
In a land
In a land
with me.

I know that's breaking the rules and going on a word spree--we're bad! See.

We clip and clop with the coconuts!
We clip and clop with the coconuts!

I got sucked
into a com-puuuuu-ter game
I'm so fucked
run from evil pro-grams

Ti
tan
tic
Baby let's go down
on the
Titan
tic

JAWS
JAWS
JAWS
JAWS

Don't forget your
whip and hat
Don't forget your
whip and hat hat hat
Don't forget your
whip and hat!
In the desert!
In the desert!

^ I was trying to do an Indiana Jones one last night, but didn't get very far with it.

We're surgeons stuck in Ko-re-aaa
Patching up our soldier boys
We drink and screw and laugh and cuss
And disrespect the Army brassss

myyy name's jamie
i'mm a jerkface
priison camp is
not so bad

My folks left me a-lone ♬
all alone in myyy home

I am a secret agent ♬
functional al...coholic
(and I hate women)

CatchMeIfYou ♬
CatchMeIfYou CatchMeIfYouCanIf CatchMeIfYou

we were just trying to make something coool
we made a time machine insteaad
now time travel's ruined our liives
wish we'd started with some kind of pri-mer

I think I just completely did that wrong, having re-read the thread title

Yeah I don't think Primer had a theme tune.

A girl
But what about the girl
she's dead...

She's wrapped
But what is she wrapped in?
in plastic

It's a small town
We should call the F... BI

did firewalk with me have a different theme than the tv show?

my dad is powerful but i'm a normal dude
jerks shot my brother, which really made me brood
dad ate an orange
and then he died
and now i take his place as head of the family

Godfather

Some-BODY once made me an ogress, Eddie Murphy,
but who made you a donkey instead?

Instrumental