wpdb prepare sql problem

To get a % character into your SQL string without confusing sprintf() add it to the replacement string:

$alabala_sql = $wpdb->prepare(
    "
    SELECT *
    FROM $wpdb->posts p
    INNER JOIN $wpdb->term_relationships tr
        ON p.ID = tr.object_id
    INNER JOIN $wpdb->term_taxonomy tt
        ON tr.term_taxonomy_id=tt.term_taxonomy_id
    INNER JOIN  $wpdb->terms t
        ON t.term_id=tt.term_id and t.slug= %s
    WHERE
        p.post_title LIKE %s
        AND p.post_type="filmi-i-serialii"
        AND p.post_status="publish";
    ", 
    $curPageId, 
    $getChar . '%'
);           /* ^ like this */