Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_name_83 ( us_peak_position VARCHAR, uk_peak_position VARCHAR )

### Question ###
What was the US Peak position of the film that peaked at #21 in the UK?

### Accurate SQL ###

SELECT us_peak_position FROM table_name_83 WHERE uk_peak_position = "21"