Root htaccess overriding the sub folder htaccess - .htaccess

Question

I have a htaccess file in root and another htaccess in films folder. I want to stop all the rewrite urls or conditions to affect the films folder. I have some other rules in film folder htaccess.
My root htaccess looks like this
Options +FollowSymLinks
RewriteEngine On
RewriteBase /
RewriteCond %{HTTP_HOST} ^abc\.in$ [NC]
RewriteRule ^(.*)$ http://www.abc.in/$1 [L,R=301]
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_FILENAME}\.php -f
RewriteRule ^(.*)$ $1.php
My sub directory films folder htaccess
Options +FollowSymLinks -MultiViews
RewriteEngine on
RewriteBase /films/
RewriteCond %{REQUEST_METHOD} =POST
RewriteRule ^ - [L]
RewriteCond %{HTTP_HOST} ^www\.(.*)$ [NC]
RewriteRule ^(.*)$ http://%1/$1 [R=301,L]
RewriteRule ^change-password/$ changepassword.php
RewriteRule ^change-password$ changepassword.php
The above code is just a glimpse of my original htaccess

Answer 1

You can do it by following code :-
RewriteEngine On
RewriteCond %{HTTP_HOST} !^www\.
RewriteRule ^(.*)$ http://www.%{HTTP_HOST}/films/$1 [R=301,L]
It may help you.

Answer 2

In /films/.htaccess ,Change your rule
RewriteRule ^(.*)$ http://%1/$1 [R=301,L]
to this :
RewriteRule ^(.*)$ http://%1/films/$1 [R=301,L]
To redirect all /films requests to www, you can use something like the following :
RewriteCond %{HTTP_HOST} !^www\.
RewriteRule ^(.*)$ http://www.%{HTTP_HOST}%{REQUEST_URI} [R=301,L,NE]