▁in ▁black ▁and ▁white ▁prior ▁to ▁production . ▁As ▁an ▁Alfred ▁H itch cock ▁fan , ▁he ▁wanted ▁to ▁have ▁H itch cock ian ▁elements ▁in ▁the ▁film , ▁such ▁as ▁unusual ▁light ing ▁angles , ▁an ▁eer ie ▁musical ▁score , ▁close ups , ▁and ▁subt le ▁hints ▁rather ▁than ▁graph ic ▁dep ict ions ▁of ▁the ▁violence ▁C ady ▁has ▁in ▁mind ▁for ▁the ▁family . ▁ ▁The ▁out door ▁scenes ▁were ▁fil med ▁on ▁location ▁in ▁Sav ann ah , ▁Georgia ; ▁Stock ton , ▁California ; ▁and ▁the ▁Universal ▁Studios ▁back lot ▁at ▁Universal ▁City , ▁California . ▁The ▁ind oor ▁scenes ▁were ▁done ▁at ▁Universal ▁Studios ▁Sound stage . ▁Mitch um ▁had ▁a ▁real - life ▁a version ▁to ▁Sav ann ah , ▁where ▁as ▁a ▁te en ager , ▁he ▁had ▁been ▁charged ▁with ▁v ag ran cy ▁and ▁put ▁on ▁a ▁chain ▁gang . ▁This ▁resulted ▁in ▁a ▁number ▁of ▁the ▁out door ▁scenes ▁being ▁shot ▁at ▁L add ' s ▁Marina ▁in ▁Stock ton , ▁including ▁the ▁cul min ating ▁conflict ▁on ▁the ▁house bo at ▁at ▁the ▁end ▁of ▁the ▁movie . ▁ ▁This ▁scene ▁where ▁Mitch um ▁attacks ▁Pol ly ▁Ber gen ' s ▁character ▁on ▁the ▁house bo at ▁was ▁almost ▁completely ▁impro vised . ▁Before ▁the ▁scene ▁was ▁fil med , ▁Thompson ▁suddenly ▁told ▁a ▁crew ▁member : ▁" B ring ▁me ▁a ▁d ish ▁of ▁eggs !" ▁Mitch um ' s ▁rub bing ▁the ▁eggs ▁on ▁Ber gen ▁was ▁not