Royal Enfield is still preferred bike in India movies, you can see it often, even latest movies they have royal enfield featured as bike of the lead actors.
But even in 1950s, it was preferred one.
(http://weroyalriders.com/talk/index.php?action=dlattach;topic=85.0;attach=111;image)
1951 Royal Enfield Meteor in Relato policíaco, Movie, 1954