Lyric are below.
One of the most popular animated scenes from The Wall movie is the flower scene,animated by Gerald Scarfe.The tune is called What Shall We Do Now. It speaks for itself.
The song was originally called Empty Spaces and shortened for The Wall album due to the overall time considerations for vinyl albums.

Gerald Anthony Scarfe, CBE, RDI, (born 1 June 1936 in St John's Wood, London) is an English cartoonist and illustrator. He is best known for his work as editorial cartoonist for The Sunday Times and illustrator for The New Yorker. He has also worked for rock group Pink Floyd, particularly on Pink Floyd The Wall album (1979) and movie (1982).
Scarfe was approached to work with Pink Floyd after Roger Waters and Nick Mason both saw his animated BBC film A Long Drawn Out Trip. Scarfe's first work for the band was a set of animated short clips used on the 1977 "In The Flesh" tour, including a full-length music video for the song "Welcome to the Machine". He also drew the cover illustration for their 1979 album The Wall, and in 1982 worked on the film version of The Wall, although he and Waters fell out with director Alan Parker during the latter stages of editing. As well as the artwork, Scarfe contributed 15 minutes worth of elaborate animation to the film, including a sequence depicting the German bombing campaign over England during World War II, set to the song "Goodbye Blue Sky".
He was also involved in the theatrical adaptation, including The Wall Concert in Berlin, where his animations were projected on a vast scale.

Lyrics:

What shall we use to fill the empty spaces
Where waves of hunger roar ?
Shall we set out across the sea of faces
In search of more and more applause ?

Shall we buy a new guitar?
Shall we drive a more powerful car?
Shall we work straight through the night?
Shall we get into fights?
Leave the lights on
Drop bombs
Do tours of the east
Contract diseases
Bury bones
Break up homes
Send flowers by phone
Take to drink
Go to shrinks
Give up meat
Rarely sleep
Keep people as pets
Train dogs
Race rats
Fill the attic with cash
Bury treasure
Store up leisure
But never relax at all?
With our backs to the wall.