Like a lot of movies involving little kids, this starts off "real cute" and likable...and then, after about a half hour or so, becomes the reverse.
That's certainly the case here in this time-travel story (which I usually love) where an adult meets a kid who his really him at the age of eight! Great premise and a great lead actor in Bruce Willis, but.....
The kid "Rusty" is a smart-aleck and whiny brat and Willis Rusty grown up now as "Russell" gets abrasive with his constant yelling. That is entertainment? No, thanks.
Young Breslin has gone on to become a very good child actor, being involved in a number of films including "The Cat In The Hat" opposite a more famous child actor: Dakota Fanning.
Overall, a disappointing film, especially with all the good press this movie got when it was released.