Watching IaLP from a modern perspective (spoilers)
I was certainly engrossed by this film, and I've enjoyed Nicholas Ray's films in general. However, even assuming that Dixon Steele did *not* kill the hatcheck girl (which turns out to be the case), to my modern eyes he gave off enough warning signs of being an abusive and potentially violent man to make me seriously worry about Laurel Grey. Even the way he kept rushing her in the relationship is now considered to be a warning sign. I cringed when he insisted on listening in on Laurel's telephone call, with the obligatory apology and "It'll never happen again" afterwards. Also, $300 is not much of an apology for beating someone up and then leaving them unconscious at the side of the road without making sure they're all right. (I wasn't impressed with Laurel for doing that, either.)
Even though I appreciated the film's balanced approach and the way it made me sympathize with both main characters, the fact is that even though her love was real, Laurel Grey was well out of it, unless she wanted to end up dead or badly injured (with a sincerely broken-hearted Dix at her side, of course)-: I wasn't too impressed with Laurel's line near the end about "Yesterday, (the news of Dix's innocence in the murder) would have made all the difference." If they had gotten together yesterday, all their original problems would have remained!