When at the dinner table, Adi's mother claims to have gotten blue Easter eggs by mixing yellow dye with green dye. Blue is a primary color and cannot be obtained from mixing any other colors. (Green, however, can be obtained by mixing blue and yellow.)
Adrian Daminescu's "Si m-am indragostit de tine" can be heard playing downstairs when Otilia is outside of the hotel room, checking on Gabita. The song is in the same place when she suddenly appears downstairs to talk to the hotel matron.