This movie has been one of my favourites since I was a kid, and remains so to this day. I've re-watched it several times, and I pick up on something different almost every time.
It really is a golden film. The acting was definitely not the best, but the character development was superb! You really feel like the actors/characters are /interacting/ with each other, and not just standing around reciting lines. The dining room scene particularly seems to do this (at least for me) because the conversation is so realistic! There are interruptions, gestures, passion even! Even in the focus of the film and the way it portrays certain characters, you can see how it was directed towards a certain audience. On top of that, there was no explicit romance (no annoying sex scenes or close up kissing shots) and even Ellie's character was not oversexed. I love seeing a female heroine whose worth is not centred around her sex appeal and maybe it's just a difference in time, but there's so much of that in many of today's films. I do wish there could have been more female characters, but at least the one woman present was actually very useful and courageous, and never had to be rescued. (The little girl did, but so did the little boy, and besides they're kids.) I also loved Dr. Malcom's character - I wish he was real so very badly! He was the entire reason I liked The Lost World, but I won't get into the sequels..(which weren't /that/ bad - except number 3 maybe - but the movie could've gone without).
Anyway before this becomes an essay I'll just say that the movie had a wonderful amount of action, character development, somewhat poetic justice, and even intellect that really makes it a classic. I give it a 9/10. heart