create or replace function get_film (

  p_pattern varchar

) 

    returns table (

        film_title varchar,

        film_release_year int

    ) 

    language plpgsql

as $$

begin

    return query 

        select

            title,

            release_year::integer

        from

            film

        where

            title ilike p_pattern;

end;$$

Code language: PostgreSQL SQL dialect and PL/pgSQL (pgsql)