Successful jokes are thin on the ground in the musty sixth installment of the once-popular parody franchise, taking aim at everything from Scream to Sinners Successful jokes are thin on the ground in the musty sixth installment of the once-popular parody franchise, taking aim at everything from Scream to Sinners T he Scary Movie series has always depended on timing. Not necessarily in its gagcraft, which has oscillated between occasional sharp jabs and many beyond-broad blows, but in its