My contributions (I don't have Photoshopping skills, so bear with me):
Marius: I know she's kind of socially retarded and weird, but she's my friend... so, just promise me you won't make fun of her!
Fantine: I gave him everything... I was half a virgin when I met him!
Valjean Don't have sex, because you will get pregnant and die!
Foreman: You all have got to stop calling each other sluts and whores. It just makes it OK for guys to call you sluts and whores.
Salve, Regina, Mater misericordiae
Vita, dulcedo, et spes nostra
Salve, Salve Regina
Ad te clamamus exsules filii Eva
Ad te suspiramus, gementes et flentes
O clemens O pia