[Haskell-cafe] Getting started - help

[applebiz89]

What I need to do is build a type of database. Firstly have a few questions,
whether what I have done it right...and how to do something else. 

This is my algebraic type for the database (correct me if its wrong) 

data Film = Film String String Int String 

with this as the data. 

testDatabase :: [Film] 
testDatabase = [("Casino Royale", "Martin Campbell",2006, "Garry, Dave,
Zoe")] 

the last set of strings are the fans to the film. I want to be able to add a
new fan, but not sure how to specifically insert it to there 

this is what I have so far: 

becomeFan :: String -> String -> [Film] -> [Film] 
becomeFan = do putStr "Which film are you a fan of:  " 
            filmTitle <- getLine 
            do putStr "What is your name: " 
            fanName <- getLine 
            (if filmTitle == filmName then fanName : [Film]) 
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