Download A better Mplayer GUI and a in-dev resume playback script.
A decent,mostly complete Mplayer GUI/Interface, Menu System. Done using Mplayer1's OSD Menu Feature. Please note the fork mplayer2 does not support osd menu.
Included is a script for resuming playback from when you left off. Meaning you can start the movie you were watching earlier from where you stopped. Needs more work do on it. Originally it's bash script that expects full gnu bash programs so I have been finding busybox compatible ways of doing things and removing code that is for Xorg and other edits.