Analysing Textual Poems 6

Read the following lines from 'Celluloid Heroes' and answer the questions
that follow.
Everybody's a dreamer and everybody's a star,
And everybody's in movies, it doesn't matter who you are.
There are stars in every city,
In every house and on every street,
And if you walk down Hollywood boulevard
Their names are written in concrete!
1. What does the expression 'Everybody is in movies' signify?
2. In what sense is 'Everybody a star'?
3. Which place is referred to in these lines?
4. The line, 'Their names are written in concrete!' can suggest two meanings.
Explain.