this film have to be the most underrated film ever make . it host some of the best performance to date of the like of ustinov and lansbury and mia farrow and brilliant characterisation from maggie smith and bette davis and jane birkin . to be honest they all give this film their best . the location be magnificent and the costume stun and the intrigue be masterfully work on . simply the best christie film of them all . i be a bette davis fan before the film and when i saw it upon release i be introduce to so many other performer that i have this film to thank for that . positive .