VLC

VideoLAN VLC Media Player
VideoLAN - VLC media player - http://www.videolan.org/vlc/

Move Subtitle Below Video
tools -> preferences -> show settings (all) -> video -> filters
 * select "video cropping filter", which will add "croppadd" text
 * -> croppadd -> pixesl to padd to bottom -> 76px or 100px

References:
 * 11.10 - How to show subtitles under the video in VLC? - Ask Ubuntu - http://askubuntu.com/questions/284709/how-to-show-subtitles-under-the-video-in-vlc

Auto Show Subtitles
tools -> preferences -> show settings (all) -> input / codecs -> subtitle track = 0

References:
 * Subs - how to keep them selected? - The VideoLAN Forums - https://forum.videolan.org/viewtopic.php?f=2&t=41193&p=128494&hilit=subs#p128494

Rotate Video and Save
Rotate Video Using VLC Player - Techogger - http://techogger.com/rotate-video-using-vlc-player/

Media - Add file (select file) - Convert to mp4

See also HandBrake