The sidekick is so foul and obnoxious he throws the movie completely off-balance.
You feel like the movie needs a sorbet after one of his scenes to get the bad taste out of your mouth.
If you want your next dose of laughter after Superbad then go see Good Luck Chuck but don't expect anything new or inventive in terms of storytelling.
It is however something to note that there are tons of sex scenes, lots of boobs, extremely raunchy jokes, and Jessica Alba does not reveal any body parts although some side boob can be glanced for a brief moment in the movie.
I was hoping Good Luck Chuck would be a hilarious smash hit but throughout the advanced screening I kept thinking to myself "Okay well this is funny but it's so typical." Now I don't want to give anything away but let's just say if you've seen at least one romantic comedy in your life then you know the entire story of Good Luck Chuck already.