Was Rimmer's face even seen on camera and did he have any lines at all?
Yes. And, yes. In fact, on the 5th he was featured in the slideshow for the film:
(http://www.dsboards.com/2012moviequoteimages/0805DS2012_0.jpg)
1972 - Board Member 1: 'He's right. It doesn't mean
anything to our bottom line.'