A77 movie button turnoff
If you have updated to 1.06, then it has changed. Go to menu select the "custom" menu (looks like a gear) scroll to page 3. The bottom choice is "movie button" you can choose ALLWAYS, which means every time you push it (by accident or not) it will start recording. or MOVIE MODE ONLY which means it will only work when the mode dial is turned to MOVIE mode, (looks like a piece of film) it's the one in between the 12FPS and MR.