Who did the singing in O Brother Where Art Thou? She and Sheela treat Giddy as if she is this when - perhaps ironically - Giddy does know a few things.
Her relationship with her husband includes intimacy and commitment, but lacks passion.
Jonah attempts to get Lily to leave and almost succeeds, until Eva notices Lily and starts to scream, whereupon Lily starts to attack her.
Watch Sirens above or at Watch The Movie Show's review of Sirens above Watch an interview with director John Duigan above.
As is the case with most of the mermaids in the film, these creatures were drowned unmarried girls who then evolved into killer mermaids.
Robbie's involvement with Birds of Prey and The Suicide Squad are probably factors in Gotham City Sirens' delay.