transcript:
cat mum: what's 6 times 7?
cat boy (making faces): 6 7!!!
cat mum: hilarious, as always. but actually ...?
cat boy: 42
cat mum: 6 x 7 - 6 7 - is 42?!
cat boy: yeah ... so?
cat mum (making faces): that means 6 7 is the answer to the ultimate question of life, the universe and everything!
cat boy: daddy! mommy's being weird again!
cat dad: aww, you see son, - your mommy is just a huge dork!
cat mum: history doesn't repeat itself, but it rhymes!
It's funny that Arthur even suggests "What's 6 times 7?" as the ultimate question. At least in the movie. It's been a while since I read the books.
A fun afternoon.
I think they find out in book 3 or 4 that that's the question, but it's been years since I've read them.