Heath Ledger and Abbie Cornish are junkies in love, traveling a dramatic arc as old as Days of Wine and Roses (1962): the high that once united them ultimately divides them. Unfortunately too many elements of this Australian feature have been recycled from other addiction stories (there's even a dead baby, courtesy of Trainspotting), and the couple's descent into crime, prostitution, and scribbling doggerel on walls isn't particularized enough to compensate for all the corny underwater sequences of them swimming together like porpoises. Ledger steals the movie as the loving but feckless husband, who's just smart enough to realize his wife deserves better. Neil Armfield directed; with Geoffrey Rush. R, 107 min.