Villareal - how to get there from barcelona

Hey there,
I will be in Barcelona at 4/3/15.
I want to watch Villareal vs Barcelona Semi final.
What is my best option to get there?
i looked at train but didnt find good hour to return to Barcelona.

Please advice,

Sorry bud. Not sure I can help with this one as I've not been further afield in Spain than Barcelona. Train is probably you're best bet though.