Obviously Robert Downey, Jr. and Jude Law had a lot of fun making this movie. Fun interaction between them and Rachel McAdams has a good time too. Enjoyed the film.
Had a great time watching this and think that they've done a nice job honoring the first ones. You don't have to know anything about them but if you do know the old movies, there's some stuff in there that's really fun (including cameos by the original kids). This film isn't art by any means but I found it entertaining which is definitely a valid function of movies in my opinion. Enjoy!