Although it does have a couple of goofs. Only see it if you can handle such blatant (and I believe willful) anachronisms as the following:
When his parents are to the rehearsal dinner, Walter and his babysitter Dana are in the kitchen. Walter is playing with his Lego bricks. One of the towers he has built has a yellow 2x6 brick on top. These type of bricks were introduced by The Lego Company in 1981. The film is set in 1976.