Is it fun watching an NBA superstar play a basketball game with Looney Tunes characters? Eh, kinda.  It's more fun making fun of him for even agreeing to do this movie.  I actually don't think LeBron read the script before agreeing to do this movie, because it is ass.  I think that a lot of the fun that came with the first Space Jam was the fact that Looney Tunes characters were way more nostalgic back then.  But now, not so much.  Mostly because the people who are nostalgic about the Tunes are not the same people who are massive LeBron fans, and also the Tunes have had like three spinoff TV shows since the first Space Jam.  Anyway, this movie would have been way funnier if LeBron was playing with Disney characters.  Don't watch it unless you like to laugh at LeBron with friends.