The proud grandmother wants her teenage grandsons Michael and Daniel to follow in their famous family's footsteps, but Neeson, who was married to Richardson until her death in 2009, is relieved they do not want a career in the spotlight.
He tells Britain's Sunday Telegraph, "My mother-in-law is encouraging them, but that's mothers-in-law, isn't it? (They have shown no interest) in that direction. I'm kind of relieved because I think if you're the son or daughter of a successful actor it's a double pressure because so much more is expected of you.
"And you know, for every successful actor or actress, there are so many others who aren't successful. When it comes down to it, the name of the game is really about rejection. It happens all the time. You go for an interview for a part and you're rejected for all sorts of things - you're too tall, or too Irish...
"It is a hard process to go through and I don't want my kids to have to feel that. It may come later, but I'm not actively encouraging it."