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_203_289 ( id number, "version" text, "length" text, "album" text, "remixed by" text, "year" number, "comment" text )

### Question ###
how long is the remix that was used in the movie 21 ?

### Accurate SQL ###

SELECT "length" FROM table_203_289 WHERE "comment" = 'used in a scene in the 2008 movie 21'